A roundup of economists blogging on Christmas gift-giving:
Are men or women more tolerant of inappropriate gifts?
Christmas Signaling - What do our gifts say?
Weak Social Theories - Modeling gift giving without giving too much away
The Point of Tipping? - How to tip the newspaper deliverer
Markets in everything: Boxing Day edition - How to allocate seats for the holiday family dinner
Non-Sequitur of the Day - Should the government use gift cards to stimulate the economy?
Advice for the Generous - Greg Mankiw receives advice on worthy charities
The Potlatch Scandal: Busted for Generosity (see, also, the critical comments)