Like many people, in TF2 one of the things I find most frustrating (aside from repeatedly getting schooled) is not having hats. I have one. There are a total of 30 if you count the hatless hats. Doing the math, I need some more fucking hats.
You like my hat, chuckle-nuts?
The only way to unlock them is to play TF2. Like, a lot of TF2, because hats drop about as frequently as Beastie Boys albums. But what do you do if you don't have the time to play 20 hours a day?
That's when you something like SteamStats, an idler. It allows you to be "logged into" TF2 using a fake server and just sits there. It's not nearly as computer resource intensive as just chilling in an idle server, so keeping it up and running is just a matter of not playing anything on Steam while you go about your business or just leaving your computer on.
Items drop about 5-6 times a day, and so far I've received no hats, but just the fact that I now have a greater chance to get my beloved camera beard makes this full of win. Enjoy your hats.