My husband from time to time will bring back a trinket for the children. Last trip, he returned with a state shaped magnet, perfect for another geography teaching moment.
Another fun way to incorporate geography easily for our family uses the envelopes from our recently received Christmas cards. We gather the envelopes and a map or globe. Using the return addresses to find where Cousin J lives, or where Cousin B is stationed. We can compare distances and time zones as well.