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 Extract, and All-grain BIAB
Primary 1: BM Centennial Blonde (again :) )
Primary 2: Raging Irish Red
Secondary 1: Skeeter Pee
Secondary 2: Air
Bottled/Kegged: Apfelwein, Two Hearted Clone, Graff