Wicker, have a look on this board for "advent" threads - there are a few that have a looooooong list on it that I drew up years ago (from posts on a few similar threads on an Irish parenting forum and a US Christmas forum combined). So there are loads of ideas on that, which suit a range of ages (some are for very small only, some are for much older only, and some suit all ages even into the 90s!).
Flapjack, sorry to hear that DS will need more antib's but at least he's in the right place. Is there anything we can muse upon to cheer you or him up?
Fluffy, we're like you - no Elf here. (But sometimes a few mad ideas in the advent calendar! And the soft toys have been known to set up a tea party, or have one reading a Christmas story to them all, on DD's bed some nights!). I've never gone as far as proper mischief like a cotton wool snowball fight or other mayhem though....
MrsMad, I hope you persuaded DH to keep his Dr appointment and get it checked out - if something keeps happening, it's very very wise to get it checked, even if it keeps resolving itself.
Meanwhile, I've actually got more real work done today than all last week! And we got our jobs done at lunch as well, and found a birthday cake for DH (his birthday was yesterday but as he was in the UK, we'll celebrate tonight when he gets home). Going to try and get a few more bits done before I need to leave....