You know that calendar that Martha has in the front pages of her magazine? She has it on her website, too, only it's more detailed. You can display her calendars for Thanksgiving, Christmas, Hanukkah, Homekeeping, and Gardening.
And! You can put her calendars on your own Google calendar (or Yahoo!, Outlook, or iCal calendars). Of course, you may not want to display them all at the same time, but they will be there in the sidebar when you're ready for them.
Ooooh, I'm so excited.