Seasonal ideas

If you have a website, do you update it for seasonal changes? Obviously, you don't want to do a total remake several times a year, but it is always a good idea to acknowledge the holidays and seasons of the year.
My favorite search engine is Google; if you've never seen the way they honor different holidays, visit this page - it's their 'museum' of logos.
I know you can't do something on the same scale, but you can support your favorite holidays. As an example, during the Christmas holidays, I make a slight change to my logo, then link it from my main page, to a retelling of the Christmas story from the book of Luke. Starting this next year, I plan to do something similar for the Easter season - after all, the main purpose of Christmas' gift is fulfilled in Easter.
Think about it, and see what ideas you and your designer can come up with to celebrate the holidays and seasons that are important to you.