The extra price is sometimes called a "non machine able surcharge". I think it has something to do with can it be sent through the stamping machine to cancel postage.
Even though I always label my envelopes "do not bend" the postman doesn't always follow that hint. I have gotten several envelopes back-with cardboard-bent down the middle.
To me, creases are ok but some people it really ticks them off.
What I do is use cardboard inserts and pay according to weight with no other costs. You won't get every request back so I like to cut costs where I can.
Good luck with your letters!
BossC
The extra price is sometimes called a "non machine able surcharge". I think it has something to do with can it be sent through the stamping machine to cancel postage.
Even though I always label my envelopes "do not bend" the postman doesn't always follow that hint. I have gotten several envelopes back-with cardboard-bent down the middle. :(
To me, creases are ok but some people it really ticks them off.
What I do is use cardboard inserts and pay according to weight with no other costs. You won't get every request back so I like to cut costs where I can.
Good luck with your letters!
BossC