Keep one master list
Put every name and mailing address in one place instead of old envelopes and phone notes. Add a column for how you know them (family, friends, work) so you can trim the list if needed.
Track sent and received
Mark who you sent a card to and who sent one to you. Next year it is easy to see who to add or drop.
Plan postage and cost
Count the cards, check current stamp prices at your post office, and add cards, stamps and photo prints to your holiday budget. The free Christmas budget planner has room for these extras.
Update addresses once a year
When a card comes back or someone moves, fix it right away. A quick January check saves time next December.
Print labels
If your list lives in a spreadsheet, a mail merge in your word processor can turn it into address labels.