Very nice tips. Thanks for sharing them with us and thanks to all the others for their suggestions, too.
I do like others - I keep the stabilizer with the label. I store my WSS in plastic bags - it is very dry here and things like topper become too brittle if not stored tightly.
Recently I made felt covers for slap bracelets that have the type of stabilizer embroidered on them. These should be easy to see at a glance.
I buy large 10 or 20 meter rolls and place on standetoilletpapier roll holders, cut and cover them with old pants of jeans, and label the type of stabilizer