I don't stress about the rest. No one has as high expectations for me as I do for myself. So if I don't meet my own expectations, no one else notices. I try not to announce my expectations, so they really don't notice.
Then as time passes, my standards lower. So the rest of the presents get thrown in gift boxes... so what, it's what's inside that counts? So the house isn't perfectly clean for company... my sister has seen worse! No matter what my house looks like or how the presents are presented, Christmas will still come. Good thing we can't stop it because we're not ready, it would never happen!
Anyway, I'm the one who puts the most stress on myself. My family is just happy to be together and celebrate this sacred time. That is the way it should be; remember the reason for the season.