I'm not sold on the idea of forever stamps yet because they have taken the fun out of collecting more types of stamps; however they exist and are probably here to stay. Since there may be designs I can use for topical collection my question is how do you get them off the envelope without damage? I doubt soaking them would do the trick. I don't want to use the album space for whole covers for these and being on bits of paper is a detraction in my mind.
There are many methods used to remove self-adhesive stamps from envelopes. I recommend that you click on the Search button above and type removing self-adhesive in the first search box. You will find many previous SCF threads on this subject.