Envelope flaps stick

[ChrisGreaves]

(Bit of a toss-up, here or Hardware ...)
It was more humid in the Carboniferous, but only just.
I still print envelopes from time to time.
I've tried
(a) microwaving envelopes for ten seconds
(b) leaving them flap-opened over the lip of the laser printer
(c) leaving them flap-opened atop the laptop keyboard (I have hooked in a regular keyboard)
(d) standing poised with a steel letter-opener to prise their jaws apart as they exit the laser
all to no avail.
The laser welds them tighter than ...
Today I tried something that worked:-
I tore a 1 1/2 inch strip from the foot of a used sheet of laser paper and slid it under the flap, so that the gummed portion could not come into contact with the rest of the envelope.

It worked!

[Guessed]

I would have tried a bit of baking paper folded into a tent and slipped into the envelope with enough hanging out to separate the glued surface from the envelope.

But microwaving sounds like more fun

[ChrisGreaves]

I would have tried a bit of baking paper folded into a tent and slipped into the envelope with enough hanging out to separate the glued surface from the envelope.

This would work, but I am using but a strip of scrap rather than valuable baking paper (plus a trip to the kitchen), and I don't have to stuff anything inside the envelope - just under the flap.

But microwaving sounds like more fun

It is. Although I've heard stories of people pressing 444 instead of 44 and ending up with brown government-like envelopes ...