In addition to the overuse of wrapping paper this time of year, there is an overuse of paper cards. I have no problem with the exchange of greetings, but many cards are used once and then recycled (or, worse, thrown away.) For years I kept my cards, sorted by year, in a designated box. When my box started overflowing I finally started doing what my wonderful great-aunt had been doing for years:
Turn your old cards into new cards by cutting out pictures or phrases that you like and gluing them together. Use the back of old cards as the cardstock base for your new cards. This is a great family project and a fun way of making new cards. Now I keep cards with particular sentimental value and reuse the rest.