Most standard online shipping offers expire on or before Dec. 19. Although quite a few sooner than that. Go to dealhack.com/deadlines for a quick-reference guide to the delivery deadlines of over 150 major online retailers.
Holiday shipping tips
1. Wrap each item separately with two inches of cushioning -- bubble wrap, air pillows, packing peanuts. One biggest mistakes people make: underestimating the amount of packing needed. If you need supplies, a good site to go to is uline.com