My post office is at least 15 minutes away. I was having a hard time getting there on Monday after work, going through traffic and then waiting in line forever. So one day I decided to count my coupons before I went to the P. O. Here is what I found....
100 coupons needs .59 cents of postage
75 coupons also needs .59 cents of postage
By counting my coupons I actually saved money. I had been sending the envie w/ 2 stamps = .84 cents postage!

But now I'm saving .17 cents on postage.
I haven't had one envie sent back, so my system has been working!

I hope someone can use this info!!!