Sticky taping stamps to envelopes?

[deadlyblade21]

I was advised to sticky tape stamps to bubble bags when posting something to avoid risk. Now someone else is telling me they will reject the postage if you do that, because they will think you have reused a stamp and needed tape to stick it. Is this true?

[harley_babes_hoard]

if they have ink stamped them then they have been cancelled? so it wouldn't be a problem. The point is if you tape over them they can't stamp them to cancel. If they are only partly covered then I doubt it would be a problem.

I pass over the counter 20-40 envelopes most days they ink stamp every single one.

[federalbookcollectibles]

We put a blank label on the plastic coated envelopes and put the stamps on that - never had a problem with stamps falling off.