Here are some ideas from Martha. You can see all of them HERE.
Start wrapping presents early, but add ribbons, bows, and tags later (label gifts with sticky notes so that you don't forget who gets what). Unadorned boxes are stackable and, as a result, will be easy to store and transport.
Keep Universal Tokens on Hand
Chances are you'll need some last-minute gifts, either for an unannounced guest or for friends who extend 11th-hour invitations. Stock up on a few items that would appeal to almost everyone (including you, should they still be in your care come January). Several jars of locally made preserves are good to have on hand, as are beautifully wrapped soaps and bottles of wine.
When traveling for the holidays, lighten your load by purchasing gift cards rather than bulky presents. If you must bring gift-wrapped items, package them in such a way that airport security will be able to examine the contents; a box in which the top and bottom are wrapped separately, with a card and the ribbon tucked inside for attaching later, is one option.
Buy Baking Staples
Cut back on last-minute grocery trips by stocking up on baking ingredients early. Be sure you have the basics you'll need most often: butter, flour, granulated and brown sugars, baking powder and soda, yeast, and vanilla extract.