I shipped and envelope out of FLL at a FedEx/Kinkos and the guy gave me 70% discount, then shipped a similar envelope with the same service out of a FedEx/Kinkos in STL and got a 75% discount.... anyone else experience this?

The 70% thing was in October of last year and the 75% shipment was last week.

I'm not complaining about the 70% discount, I just got a bigger discount than I expected last week.