I use the product to glue envelopes more securely. It is great because it is not messy (and I am a very clumsy person) and it dries clear. I do believe you have to use it right away because it dries very fast.
I bought these for both scrapbooking and my son's kindergarten class and they work just fine. Our scrapbooks are about five years old and they're fine. Didn't really work well on construction paper of poor quality but nothing did.