Well, I am thinking of using the money to pay my electricity bill! That's because I leave my computer on most of the time and that was pretty harsh.
My first $100 was around $600. I just spent it on A class drugs, beer and prostitutes... On a serious note i just spent it like any other bit of cash...
What do you mean by reinvesting? I have some lose cash that I intend on helping my website. Got any ideas?