For those who aren't keen on opening up their PC to put in more memory, Windows Vista has a handy little feature called ReadyBoost that can use USB sticks for additional memory.
From the article:
Sooner or later, everyone's computer tends to slow down. Call it old age or simply doing too much, but even the most cutting edge PC's seem to lag after a year or so of use.
Unfortunately, Windows Vista doesn't take kindly to the slower sticks on the market and refuses to use them. Proving once again that we control the computer and not the other way around, here's four simple steps to get around this limitation and use any USB stick you have to increase your computers memory.