I've been playing with this bookmark idea in my head for awhile and today's Technique Lover's Challenge gave me the perfect opportunity: Forums at Splitcoaststampers
I used my new Clevercut (5 in 1# Paper Trimmer from Crafter's Companion to make the straight cuts, score my card for the fold, round the corners and perforate the edge for the removable bookmark: http://crafterscompanion.com/CleverCut.aspx