If it is fun, don't do it!
If it involves seeing non jw family members, don't do it!
If it involves giving someone a gift, don't do it!
I still don't get why they can do anniversaries, it is really just a celebration of the 'birth-date' of your marriage. I know, I know, they answer with 'marriage was instituted by God....' well, what is birth? yeah, we all have had this conversation a million times now........