I used to have only a few, b/c I used these honking big 20L ones in the other boat. Now I have 10L ones for the smaller boat (and a few 5L) and there are so many--I can't keep track, so I have to keep opening up bags to check what's in them. So I just ordered a big bunch of colored zip ties. I'm going to color-code the dry bags after packing: Green=food; red=clothing, etc. That way I can remember what's in them. I did that on this trip just with ONE bag--my day bag, the one with the extra fleece and socks and lunch in it--and it worked great. It and the first aid kit bag were the only ones I was sure about all weekend LOL (the first aid kit and the flashlight are in the only 5L orange bag, so I know what's in that). Hope this will help!