Sell my car and use that plus part of the 10k for a nicer/more fuel efficient one. Buy a motorcycle, preferably a Honda CX500 Turbo (http://i9.photobucket.com/albums/a79/Sennake_models/real_cars/motorcycles/1982_honda_cx500_turbo_real1.jpg). Reduce my Amazon wishlist (books mostly) to zero. And invest the rest in a new business.
I'd probably invest it in a good portfolio. It's not hard to pick up women, even if you don't have too much money. You just need to dress the part.
Have a BIG party.. enjoy with friends..... What else am I suppose to do with 10K ? you should have to ask about 10 million..
since 10k is a bit small amount for us to start celebrating, I guess I'd go for investments making it bigger than it use to be.