Reviving an old thread because I had the same question.
jjjandrbaker wrote:
My camper is small. The storage compartment is ridiculously tiny. I needed something that would hold the hose in a compact tight unit. I found the Storahose, and have been very happy with it ever since. It takes no more time to put the hose into it than it does to coil a hose without it.
Storahose hose bags
I found a video showing you how to make one of these hose bags using one of those semi-disposable cloth shopping bags and a stapler. As a free bonus it's a funny video. Kinda reminds me of Red Green.
https://www.youtube.com/watch?v=JITX2w6ATY8