1. Reuse last year's cards by replacing names and sending them to your friends. This can be justified by pretending you care about the planet.
2. Wrap something your brother doesn't know he has already and pretend you bought it for him (tip from Jed who does this with his human)
3. Give gifts you want that you know the other won't want. (tip from my cats who always buy tuna for the man human)
4. Use newspaper to wrap gifts. (caring for the planet, blah blah blah)
5. Give donations to a charity instead of gifts. Especially good idea if the charity is yours. (Tweak's wine fund)
6. Attend as many Christmas parties (invited or not) to save on food and drink bills.
7. Re-gift things you got last year that you didn't like. Be careful not to gift it to the person who sent it to you. Keeping a log of unwanted pressies is advised.