I know my problem with postage is our post office, I would never refuse a squishy, because I am also too excited to get them.. And 20 cents is not a hardship, it is more of an irritation. So far 3 Squishies have managed to get past the postal workers, but all the rest, if they put the regular stamp, they catch it.... ah such is life living in the Mountains where they make up their own rules, or maybe it is just to show some kind of superiority.
But honestly don't worry about it, and don't make it a rule, because why pay more if it is only a few places that get nutty!
It is almost a game to them to see how many they can catch, last time I had to pay I had a pocket full of pennies, So if they want to play I can add my spin to the game.
Marybeth