Next year, make the month of November the month to purge items that you no longer need or use to make room for the influx of gifts come December. Consider charities, craigslist, and ebay your friends during this time of elimination.
If you are expecting overnight guests for the holidays consider creating a hospitality drawer in the room they will sleep in. Place a small tag on the front of the drawer welcoming guests to what they will find inside. The drawer can either be in the night stand or a dresser. Put things like tissues, band aids, antacids, and breath mints in the drawer. Add other items you anticipate guests needing or possibly forgetting.
For extra credit, store surplus guest towels and bed linens in a bin under the bed and place a small sign in the drawer pointing guests to where they can find these items. Little touches like these make guests feel welcome and at home.