So many ideas, so little time

So I’m using as my new dumping ground for ideas, with the more promising ones migrating to the wiki to get expanded. What ideas do you have that you’d jump into wholeheartedly if given infinite time and money? What do you wish software could do for you?

My biggest wish is for hardware to become more open to homegrown software. I’d love to be able to program my coffee machine, download data from my car, etc. as there are so many useful apps that won’t work if I have to enter data manually (because I’m lazy).

How cool would an app be that can automatically track your cars fuel consumption, services, weather, etc. so you can do some powerful reporting to see what improves it? And upload this data to the car company to help their designers in return for discounts on your next car/service?