Late again. Sorry!
This one was new to me when a teacher pointed it out, and is actually fantastically useful - particularly if you're trying to train your users in how to report an issue (good luck, if so). ICT Tip 045 - Snipping Tool.doc is an easy way of screencapping areas of a screen. It is actually quicker than Print Screen -> Open Irfanview -> Paste -> Crop -> Copy -> Paste, so may well be useful to you as well as your end users.