Our only definite plan over the holidays is another visit to the Garfield Park Conservatory. I read in the Trib that another Dale Chihuly piece is on permanent display there now. The first time his work was exhibited there was probably my favorite art experience. See it here.
Or, if you are anti-art but pro-chocolate, check out the conservatory's Chocolate Fest. The next one will near Valentine's Day, as is traditional. The date doesn't seem to be posted on their site yet.