An alternative to displaying the Christmas cards you receive is to just put them in a pretty basket.
Then each day after Christmas, at dinner, read aloud one of the cards, share stories and memories of the senders, and say a prayer for them.
Continue reading one card each evening until all the cards have been read. It's a nice way to prolong the spirit of Christmas for awhile.
It also helps the two of you get to know the stories and memories of one another's families and friends.