How are your savings for retirement?
If you have no retirement savings, you can set some up at an easy to use online brokerage: Your early twenties is a great time to start, managing your retirement account doesn't really have to take a large amount of time, and 50 dollars a day should cover initial expenditures.
Also, at 29, I personally enjoy fiddling around with my retirement account... although it took me a while to figure out the right settings for myself and I did have some initial panics when it was smaller, I wasn't as familiar with the pros and cons of various investment types, and one of my stocks had gone down quite a bit. Now that it is bigger and much more well diversified, it's more fun.
Yeah, this is a priority for me. My plan is to stick my money in a few mutual funds and forget about it for 40 years. Hopefully the economy will grow in that time :)
On ChrisHallquist's post extolling the virtues of money, the top comment is Eliezer pointing out the lack of concrete examples. Can anyone think of any? This is not just hypothetical: if I think your suggestion is good, I will try it (and report back on how it went)
I care about health, improving personal skills (particularly: programming, writing, people skills), gaining respect (particularly at work), and entertainment (these days: primarily books and computer games). If you think I should care about something else, feel free to suggest it.
I am early-twenties programmer living in San Francisco. In the interest of getting advice useful to more than one person, I'll omit further personal details.
Budget: $50/day
If your idea requires significant ongoing time commitment, that is a major negative.