hey thats fantastic! i've been sitting here thinking of making one of those for those exact reasons as well! i'm tired of looking like a dork going into beginners class with a plastic bag! i was thinking that 14x18x6 might be big enough?? it's going to take a while before i make a king sized quilt! when i end up getting around to mine, IF it turns out, ill post it as well, just love yours!!!!! :!: