Love my packing cubes, and I used to be a die-hard 2 gallon ziplock packer. I bought the sets of 6, letting each person in the family choose a different color. Cannot say enough how much I like this...we tend to pack everyone in 2 rolling suitcases (family of 5) so when we get there I just hand the colored cubes to each person to put in their drawer.
Once in a while I wish I had a couple additional smaller cubes (and may order those still) but for the most part the set of 6 works great. If it's a short trip we usually don't use the largest bags, but I am a light packer and we always have a laundry option in the villa at wdw. The set of 6 includes 3 identical foot long bags.
Footlong bags:
I now keep bathing suits permanently packed in one of these for each person. Mine alone holds bathing suit, cover up, wrap, flipflops. The kids keep their pool flip flops, suits, googles, cover-up tshirt in theirs. We are either at the beach or wdw more or less every month, so having these ready to go at all times makes life easier. It's also great if you end your wdw trip with a pool day after check-out (or before room is ready on check-in). Grab a bag and change in the bathroom.
I also use a foot long bag for pajamas. My third one stores my running gear...bottom, running shirt, running bra, running socks, timer. compression sleevers all in one neat package. Another use for the footlong bag....staying one night in a hotel on the way to somewhere. You can put pj's and a change of clothes for the next day in one bag and avoid dragging the entire suitcases into the hotel (toiletries go in a tote in this case). My youngest ds uses his footlong bag to store a few car toys in, which can then be easily carried into a hotel to paly with.
From the set of 3...the smalles handles undies, socks, bras. The middle size easily stores a 6-8 tops rolled up, leaving the large one for pants, shorts, jacket, hat, whatever the case may be.
Honestly, you can't have too many of these bags!
When you order you get credits back from the company to be used on a future order. I placed my first order then needed a couple of e-bags for dh (who was already using the Eagle Creek bags for travel)...that order ended up being free with my prior credits.
Enjoy!
PS. My brilliant friend started using packing cubes to organize her sons' packs for campouts. I may try this next. Not sure my son ever changes his clothes during campouts, so it may be a waste though!