I have been seeing photo diptyches around the webs for a while now and ached with jealousy, because what with no photoshop, I figured they were out of my league. Sydneysider Louise Hawson's brilliant 52 Suburbs in particular makes me bristle with inspiration/envy - and awesome as it is, it deserves a whole post to itself, so stay posted - so this evening I decided to try my luck with free software. Surely there would be something out there?
After being flumoxed by flickr, and wandering about on google, I finally found Dipstych, a free application available here. It took all ten seconds to download and is pleasingly easy to use - essentially you just open the two (or three, or more) images you want to appear together, chose which will be on the right and which on the left, and hey presto, a new file, in diptych form. At the end of the day, I will have to eventually bite the bullet and buy photoshop, but Dipstych will keep me plenty occupied in the meantime (EDIT: A set of 80-plus diptyches on flickr has confirmed this).