Use reward/portal sites!  There are sites out there that will let you earn points/rewards that you can use towards more gifts.

http://www.mypoints.com/emp/u/index.vm

http://evreward.com/   - This one actually compares various reward sites, to help you find the best one!

http://mutualpoints.com/   - This one is a UK based site.

These are just some of the sites that offer you rewards/points that you can redeem for more gifts.  Take advantage of them!

Check Overstock.com!  Overstock.com is a great site to save money on Christmas gifts.  Overstock.com offers brand name items at 40-80% off.  Use it!

http://www.overstock.com/