Compared to #10 envelopes #9 envelopes are very overpriced. Staples does too many coupons for breakroom ans janitorial supplies and not enough coupons foroffice supplies. We do not have a breakroom and our janitorial services are included in our lease. Staples does have good pricing on copier and printer paper.
A #9 envelope fits into a #10 envelope if I want to include a stamped self-addressed envelope. The store has loud blaring music an I am reluctant to shop there!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
The power printers of the 21st century are laserjet printers. 'Gummed' envelopes are heat sensitive which means that after about three envelopes in a mail merge through a laserjet printer of any manufacture the envelopes will be sealed automatically by the printer. They will be correctly addressed but you won;t be able to add inserts to the envelope. And if you continue the laserjet printer will be jammed by the 'gummed' glue escaping the envelope and getting on the internal mechanisms of the printer.