1. Rich person who is bored: go around looks for people parking tickets and pay. Leave a little note where the ticket used to be.
2. Self cleaning sidewalks hooked up to the city water pipes.
3. Sushi Cake
4. Tempura veggies instead of hash browns in the morning.
5. 24 hour store that contain printers but no employees. You go to their website, pay and send your file. It automatically prints then give you a code. Go to the store and enter your code. It will dispense your printed document