I've been doing the same thing since about 6th grade! My first decent looking calendar had black-and-white photographs of Paris (I couldn't bare to toss it). After one of black-and-white photographs of New York City (my favourite image is of old Penn Station — that's hard to beat), I began to go for ones with reproductions of works by Great Masters (for example, I've had a Mucha calendar, a Vermeer calendar, a Sargent calendar, a Turner calendar, and so on; the difficulty is always getting ones where the works aren't cropped).

And since about 10th grade, I've been putting the images I like on my walls as decoration. When my mum saw, she told me she used to do the same thing with post cards — it works, and is a cheap way of having excellent decor.

This is the first year since then that I haven't had a paper calendar — I hate not having one, but I just moved, and we're going to paint the walls this summer, so I figured I'd abstain this year.