I use my old digital camera to snap pics of the calendars. The quality isn't the greatest, but it's not bad IMO. With 3 calendars to spread over a month, I start out with Jared, then the SPN one, and finish off each month with Jensen. ;)
Currently on my wall...Sam from S4's "Lazarus Rising".
Pretty S2 Promo pic of the guys for the middle of the month. :)
Worried Dean from S5's "Point Of No Return".