i know that BBB coupons don't expire, i used one from 05 the other day and they took it.
i wouldn't let the expiration date bother you
Yes, you can use the 20% off coupons at Buy buy baby....however there are restrictions. I called back in Nov when we were looking to change from an infant to convertible carseat. The lady told me that the coupons CAN'T be expired (even though bed bath & beyond takes expired coupons all the time) and there is a restriction on the brand of carseats. I don't remember exactly which ones, however I do know it was mainly the really expensive ones. We were looking at the Britax and I was told we could only apply a 10% discount....not the full 20%. Hope this helps...good luck!