You'll find alot of usefull stuff for starters

You may also find that it saves you alot of time too, if there is a function there that does what you want, that you don't know about you can use it instead of having to do the work yourself.
With the improved naming of functions in vB3 you can also look at the name which gives you some idea of what it does and then work out how the code does the task. If you want to create some serious vB hacks then you really need to nose through the files and see whats in them