Deemed the one day that you don’t have to worry about your wee one knocking over the Christmas tree,  Toddler Day at The Charleston Museum invites your children—ages 18 months to three years—to decorate ornaments and construct a holiday wreath at this festive arts and crafts day. The program is free for one child with a parent or guardian’s paid admission. The Charleston Museum, 360 Meeting St. Wednesday, 10-11am. $9; $6 member. (843)722-2996, www.charlestonmuseum.org