Do you still lick stamps?

No , most are now self adhesive

Self-adhesive is all there is. I used to get big rolls of stamps, you tear one off and lick it to stick it on. sometimes they fall off any you needed to use glue.

Of course. Gotta keep that thing in shape.

they've been self-adhesive here for years

Yesssss

No. They don't need to be licked anymore.