Question - How do you guys & girls keep track of all your code snippets ?

Hi,

i've been spending more time laterly codeing, for work, and my stuff at home.

so this has made me hunt for more code examples, and useful udf files,

at the moment, i store my stuff on 2 PC,s and a USB stick to "sync" it together,
( why u ask, having it in 3 location,   backup,  nothing worse than have a wonderful peice of code you wrote get lost, and have to start again )

for me, I have 3 groups,
UDF,   Code snippets  ( useful Functions ) and small programs,
and i'm starting to find it hard to keep track of it all,

so i'm wondering what do other people use,  how do you find the peice of code you know u got in your collection,

is there any good management software  to keep track of all this ?

thanks in advanced for any replies,

Nigel