Any tips for living cheaply in SF?
notdarkyet: Why?  Is there really a point to moving to SF? I see no plan here and really no reason for you to take such a leap, so why bother wasting your money just to move locations for the summer.  Anything you would be doing there could be done from where you are.  Save your $3000, continue working on what you have, and if it seems to be a good idea, invest it into that product.  You gain nothing by moving there (unless you find actual work).  I really don't understand why everyone here is telling you to do it.  I know at 18 it can seem glamorous to do something so crazy but if you sit back and think about it for a second, its pretty stupid.  If you have a finished product and have something to gain by moving there (like finding people to work with or for you on it) then I could see it.  If you were simply planning on looking for work then I could see it.  I just see no plan and it seems like a big waste to just do something so irrational.