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World savingEasy1 weekendUnder $100Web appWorld savingWeekend build

Idle Free Pledge

Parents pledge to turn off engines at school pickup and classes compete.

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The idea

A school shares a pledge link where families promise to switch off their car while waiting at pickup. Classes climb a friendly leaderboard as more families join. It is a cheap way for a green team to cut exhaust right where kids are standing.

Who it is for
School green teams and parent groups
How it makes money
Low one-time fee per school campaign
Suggested stack
Next.js, MySQL, Tailwind, hosted on a small VPS
Launch cost
Under $100

Your first AI prompts

Paste these into Claude, Cursor or Lovable, in order. Check that each one works before moving on.

PROMPT 1 OF 3

Build a web app called Idle Free Pledge. A school admin creates a campaign with school name, start and end dates and a list of classes. The public pledge page asks for family name, class and a checkbox pledge.

PROMPT 2 OF 3

Show a live leaderboard of pledges per class as a percentage of class size, which the admin enters. Add a weekly check-in link where families tap yes or no for "I did not idle this week" and show the running total.

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PROMPT 3 OF 3

Add a printable poster with QR code, a final results page to share in the school newsletter, and a Stripe checkout for the campaign fee. Email the admin a weekly summary.

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The 10 step playbook

  1. 01Claim your ideaPut your name on it and unlock every prompt and the full playbook. Always free.
  2. 02Domain and nameBrainstorm a short name, check the .com, and register it.
  3. 03Trademark basicsSearch for conflicts before you fall in love with the name.
  4. 04AI build kickoffPaste the prompts below into Claude, Cursor or Lovable, one at a time.
  5. 05Server and hostingPick a host and have your AI walk you through setup.
  6. 06Backend and dataLogins, database and payments, one prompt at a time.
  7. 07Frontend and designScreens, colors and a simple logo that look professional.
  8. 08Go livePut it online, then submit to the App Store and Google Play if it is a mobile app.
  9. 09Marketing planLaunch posts, local outreach and your first 100 users.
  10. 10Launch and growShip it and add your live link to earn the Shipped badge.
Your full playbook for Idle Free PledgeEvery step spelled out for this idea, with the exact prompts to paste into your AI.
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