BabySleepTight
Sounds to help babies settle
- White noise, rain, and lullabies, so you can keep one familiar sound every night
- Set a timer and it stops on its own, so the phone can stay across the room
iPhone · iPad · Android
DJ'S HOUSE · HAO'S DAD'S NOTEBOOK
From the first sleepless nightto kids taking on their own chores
I'm Hao's Dad, an engineer and a father. Every time my kids grew a little, a new puzzle showed up at home: getting a baby back to sleep at night, a preschooler who wanted to play on their own, daily reminders about homework and chores once school started. I tend to solve things by writing code, so the small tools I made, and the methods I looked into and tried along the way, are all collected here.
Have a look by your child's age. Something here might fit your family too.
Ages 0–2
Baby sleep
When kids are tiny, nights are often the hardest part: rocking them to sleep, only for them to wake the moment you lay them down. BabySleepTight was made for those nights. Below are notes on white noise, bedtime routines, and night wakings.
Tools I made for this age
Notes for this age
GUIDE · WHITE NOISEIs white noise safe for babies? Volume, distance and timer tipsWhite noise can mask household sounds, but too loud or too close is a problem. Three simple safety rules for volume, placement and timing, plus when to cut back.GUIDE · BEDTIME ROUTINEHow to build a baby bedtime routine: a simple 15-minute planA bedtime routine is the same steps in the same order every night. Here's a simple 15-minute routine and how to adjust it for newborns, 3 months and 6 months.GUIDE · CHOOSING SOUNDSWhite noise, pink noise, nature sounds or lullabies? How to chooseWhat's the difference between white noise, pink noise, rain and ocean sounds, lullabies and ambience? Compare each type and learn how to choose tonight's sound for your baby.GUIDE · NIGHT WAKINGSNight wakings without the scramble: a checklist for new parentsAt 3 a.m. the worst part is hunting for diapers, bright lights waking everyone, and a glaring phone. A 10-minute pre-bed checklist to make night feeds and resettling smoother.
Ages 3–6
Preschool play
Around preschool age, kids want to play on their own, and parents need a moment to breathe. I wanted those few minutes of screen time to feel safe: no countdown pushing them, and a wrong answer just means try again. There are also notes on choosing apps, playing together, and games that need no screen at all.
Tools I made for this age
Fruit Park
Six little games for ages 3 to 6
- Matching, memory, finding, sorting, counting, and patterns
- A wrong answer never ends the game, so kids can keep trying at their own pace
iPhone · iPad
Fruit Trail
A maze game: help each animal find its food
- Trace the path with a finger, with no countdown
- Names of animals and foods are read aloud, in four languages
iPhone · iPad
Notes for this age
PRESCHOOL · CHOOSING APPSChoosing apps for ages 3–6: a parent checklistWhere ads show up, in-app purchases, logins and data, parental gates, play for non-readers and offline use: a checklist for picking apps for 3 to 6 year olds.PRESCHOOL · SCREEN TIMEPreschool screen time: making a plan your family can stick toHow much tablet time is okay for a 3 to 6 year old? What major health groups suggest, plus how to set times, end without meltdowns and choose content.PRESCHOOL · PLAYING TOGETHERPlaying tablet games with your preschooler: turning screen time into talk timeTurn tablet time into talk time with your 3 to 6 year old: let them lead, name colors, animals and numbers, stop at natural breaks, and link it to real life.PRESCHOOL · PLAY AT HOMEMatching, memory and sorting games at home for ages 3–6No special toys needed. Matching, memory, sorting, counting and pattern games with socks, cards and snacks, with simple steps for ages 3, 4 and 5–6.
Ages 5–14
Chores and habits
Once school starts, “go do your homework” and “put your toys away” become the most-said lines in the house. Instead of reminding all day, I wanted to try turning chores into quests the whole family plays, where kids take them on and report back themselves. Here you'll also find notes on dividing chores, rewards, and allowance.
Tools I made for this age
HomeQuest
Turn chores into a family quest
- Kids take on quests and report back when they're done
- Parents check and reward them, and the family agrees on the rewards together
iPhone · Android · Web
Notes for this age
GUIDE · CHORESAge-appropriate chores for kids: a list for ages 3–12A practical list of age-appropriate chores for kids ages 3 to 12, with safety notes and tips for getting started so chores actually stick.GUIDE · CHORESHow to get kids to do chores without nagging: 7 methods that workTired of repeating yourself? Seven practical ways to get kids to do chores without nagging: fixed times, visible lists, choice, clear finish lines, quick feedback, and more.GUIDE · REWARDS30 free reward ideas for kids, and how to set up a reward chartThirty reward ideas for kids that cost nothing, grouped into time, privileges, and together-time, plus how to price a reward chart so it stays fair.GUIDE · ALLOWANCEShould allowance be tied to chores? A practical guideWhen to start allowance, how much to give, and whether to tie it to chores. Pros and cons of three common approaches and steps to help kids learn to manage money.
Any age
Family trips
When we travel abroad with the kids, ordering food is often the most stressful part: we can't read the menu, and we're not sure whether a dish has something the kids can't eat. So I made a tool that lets you understand a menu by taking a photo. Each dish comes with a short description and common allergens, you can show your order straight to the staff, and you can even talk with them by voice.
A tool I made for trips
Notes for this age
FAMILY TRIPS · EATING OUTEating out abroad with kids: 7 things to sort out before you orderOn a trip abroad with kids, meals can be more tiring than the sightseeing: you can’t read the menu, the kids can’t wait, and you’re not sure what they can eat. Seven things to prepare before you leave and when you sit down, so the whole family eats a little easier.FAMILY TRIPS · ALLERGIESTraveling abroad with a food allergy: how to prepare an allergy card for your childIf your child has a food allergy, eating out abroad takes extra preparation. What to ask your doctor before you go, what to put on an allergy card, how to pack medication, and the steps to follow when ordering at a restaurant.FAMILY TRIPS · SPLITTING COSTSTraveling with another family: how to split trip costs without the awkwardnessWhen two or three families travel together, the worst part is settling up afterwards and straining the friendship. The splitting rules to agree on before you go, how to track spending on the road, how to count the kids, and the simplest way to settle up at the end.
Ages 6–10
Stories from history
A podcast I make for kids, in Mandarin Chinese. Each episode boards a time ship back to the late Han and Three Kingdoms era and sets the historical record beside the famous novel, so kids learn that the story they hear isn't always the whole truth.
皓仔的時空冒險：老師沒說的三國英雄事 (Hao's Time Adventures)
- Compares official histories such as Records of the Three Kingdoms with the novel Romance of the Three Kingdoms
- Heroes aren't just good guys and bad guys; each figure has more than one side
- Connects how historical figures handled hard problems to kids' own school and daily life
Episodes are in Mandarin Chinese.
Latest episodes
- S03E21 出師表！深夜油燈下放心不下的牽掛2026-10-06
- S03E20 我盡力了！先主劉備的終點站2026-10-04
- S03E19 讓人心服才算贏，諸葛亮七擒七縱服孟獲2026-10-02
ABOUT
About DJ's House
DJ's House is the personal platform of Hao's Dad, an engineer dad in Taiwan. Raising kids comes with moments that wear parents out: a baby who won't sleep, a preschooler who wants to play alone, daily chore reminders once school starts. Since I can write code, I build a small tool for each stage, use it at home first, and then share it with parents facing the same thing.
What I looked into and tried along the way becomes the guides on this site. Each one sticks to things you can try tonight, without overstating results. For health questions, please follow your pediatrician's advice.
— Hao's Dad
- Start from a real problem at homeI don't start with a product idea. Something gets stuck at home, and then I write a small tool for it.
- Kids set the paceNo rushing, no comparing, and you can always try again. A tool should help, not become another thing to keep up with.
- Written for tired parentsNotes stick to things you can try today, without overstating results or selling worry.