Hellooo!Well,either you have stamps or other kind of trips (like Microdots) you have to store them in some place without any oxigen (little plastic bag or box or other "oxigenless" idea).But if you have stamplike trips(where the liquid acid is droped on the clean surface of the stamp) you will always lose some acid to whatever you put them in.For example,i once stored mine in a little bag covered with rolling papers and some of the acid was indeed in the rolling paper a few months after.Avoid directly touching them at all costs,or constantly moving them and handle with care,otherwise they will surelly lose some,always carry them in some plastic bag without oxigen,that's my way at least,and it works fine.Does anyone out there knows any other or better ways? Share!!!