In all my years of geekery the one thing I've always struggled with is how to make a good photo collage. I don't know why, I'm always told by those who can that it is easy.
Well now it is! I discovered the amazing, free, photo editting tool that is Photoscape.
It's so simple to use and it comes packed with features - frames (including rounded corners & polaroid frames), photo collages, vignetting filters, animation..
Give it a try :)