Some ideas:

• Nice clothing (http://www.makeyourownjeans.com/ to get custom-designed jeans that fit really well; http://www.threadless.com/ for graphic t-shirts, etc. Or hire someone to help you design your wardrobe.) Hairstyling products can be fun (if you don't want to do a lot of reading, maybe just get these two: 1 2). Also, consider getting a salon haircut; I look way better getting monthly $30 haircuts from a top-rated "men's haircuts" person on Yelp than I do getting irregular $10 budget haircuts.

• Good for loosening/relaxing back muscles

• LW Product & Service Recommendations

• Solved the problem where I had to keep sipping water to avoid getting thirsty while falling asleep

• Nootropics

• Pepper spray so you can explore sketchy parts of SF with impunity

• Mobile internet to browse the internet with impunity

However, it seems worth noting that at a certain point you will have purchased all of the low-hanging fruit and it will be harder to improve your quality of life, etc. through additional purchases. I'm also an early 20s computer programmer in SF; most of the items listed above are purchases I made in the past year, and I still had a lot of money left over.

I think a more compelling selfish case for making more money is that you can use it to buy vacations. I'm too unselfish to do this but it sounds like fun.

ETA: I think the approach taken in this thread is a bad one if you're actually trying to optimize your life. You're better off starting with goals (e.g. be happy or live long) and work backward from how to achieve them rather than starting with the question of how to get rid of all the money you're earning. If the best way to achieve your goal seems to require willpower maybe use your money to hire a life coach.