I use a variant of this. I have 2 very large kitty litter panniers I use on the front rack. Stuff the tent in one and sleeping bags (we have 3 usually) and air mattress in the other. Great for fast packing bulky stuff. I deflate air mattress by just pulling the plug and letting the weight if the sleepingbag push most of the air out. The litter pails are really big but light because I just have bulky stuff in them.