another option, when you make your order from morebeer, search for "muslin". You'll see muslin socks/bags for like .75 cents.
that's what I always use, and just toss 'em.
Brewing Since July 2012 All-grain BIAB
Primary 1: Raging Irish Red
Primary 2: Lilsparky's Nut Brown Ale
Secondary 1: Skeeter Pee
Secondary 2: Air
Kegged: Two Hearted Clone, Graff, BM Centennial Blonde (again :) )