I'm sure some of you have heard of this, but why not give it a try? ;)
http://orteil.dashnet.org/cookieclicker/
God dammit, Narric, here I am trying to nervously work up the courage to ask a girl for her number in the library and now I'm distracted by this! I had things to do today! Grrr...
(Currently own 21 fingers, 9 Grannies and 3 Farms)
EDIT:
1 hour and 13 minutes later...
I own 2 Time Machines, 23 Portals, 26 Alchemy Labs, 21 Shipments, 27 Mines, 37 Factories, 49 Farm, 60 Grandmas, 75 Cursors, a crap ton of upgrades, and produce 407,000 cookies per second. I'm done.
Well I'll leave it to accumulate loads of cookies in the background... going back every few minutes is good as you can just spend a load of cookies at once. :P
I have 100 of everything and a cookie production rate of 658,646,962.9 ... :-[