I've used Scotch adhesive transfer tape on the back of bevel-cut mat board labels. Sticks to the wall, minimal clean-up (some residue but it scrapes and sands off, and gets painted over easily), relatively cheap (about $6 for the dispenser and $3 or so for a roll of 11 yds, which lasts for 2-3 shows). We change shows every 5 weeks, and don't want to spend a lot of money on elaborate labeling. Julia Moore Director of Exhibitions and Artist Services Indianapolis Art Center [log in to unmask] http://www.inetdirect.net/inartctr/