I have some from LL Bean (older version) packing cubes that have held up nicely. Red Oxx sells them, and while I haven't used them, all their other stuff is pretty solid, so I think their packing cubes would be too. I picked some up at the local dollar store to hold some items in my vehicle, and they have also worked well. Whichever you get, make sure you try different sizes for your various items and clothing. For years now, a packing cube has been my toiletries bag and I find it perfect for that role. I also keep one permanently packed with miscellaneous stuff (alarm clock, charging cables, flashlight, etc) thereby making my packing quick and easy -- usually just my clothes for the season.