Buying frames for all of your art can be expensive, even more so if you want to have them framed for you, but this DIY project by the folks at Oh Happy Day shows you how to make good-looking wooden frames with plexiglass fronts and mat-board backings for about $US5 each.
To be fair, the total combined cost of the materials required was around $US50, but DIY blog Oh Happy Day points out that for that amount of money you get enough of the requisite materials to make 10 frames, which is where the number comes from. By buying the materials raw -- which includes the tools required to cut the mat-board and plexiglass and the hardware required to hang the frames -- you can customise the frames to fit different sizes of posters or photos you want to hang on your walls.
You will wind up sinking time into making your own frames, so if you measure the cost savings against the amount of time you'll spend assembling your frames, it may not be as big a savings, but the real benefit here are the cheap materials and the ability to tweak the frames so they're right for your space. Head over to Oh Happy Day for a photo-rich guide to making your own.