Or we can all put up one of these signs and be done with it.
I've always been taught to take each holiday as it comes. The Christmas decorations never came out until Thanksgiving was over, and each holiday was decorated with that holiday in mind. For instance, we didn't put our Christmas tree up just because we were having guests for Thanksgiving. Which to me is just plain weird. I know plenty of people that do it, though.
In my house, now that I'm a grown-up and I get to make the rules, we don't write letters to Santa until after Thanksgiving, or put up Christmas decorations, or even shop for anything holiday related. Christmas gifts being the exception, of course. Obviously, with the rising cost of... well, everything, and the number of people most families have to buy for, it makes sense to spread that out over several months.
So, my point here (I think I had a point...) is that sometimes we can slow down and take one thing at a time. Let the kids enjoy and learn about each holiday. Fall and winter have some amazing holidays, but each one has separate meanings. It's sad to see kids who have no idea what Thanksgiving is about.