I think we all have our own little cookbooks, toyboxes, libraries. I keep mine in a static library that I can link to with any of my projects easily.
I have an extension for std::string which include a "contains()" method, numeric parsing functions, and wide-character support. I have a logging utility which allows me to throw exceptions and log them at the same time. And I have lots and lots of math including PID controllers, n-order integrators, flip-flops, confirmation delays, and a massive Matrix class with about 100 methods.
Whenever I write a very generic function that I don't want to write again, I try to fit it into a class in my library. String utilities are the most monotonous things ever and I hated re-writing those over an over.
i was thinking at least one if not all of these:
a thread (not likely for obvious reason)
a pdf from media fire
a myurl.something.com site with them on it. theres one called like threegigs.com that will let me do php so ill probably do that to