Here are mine:
We participate in the FE because our son loves it and I think it's fun too, but pretty much all the stuff we've gotten is in a box in the basement that I have yet to go through (2 cruises worth)
I fill up my refillable mug directly from the soda fountains. It doesn't touch anything and seems pretty sanitary to me (if it's good enough for Subway, it's good enough for me!). Filling up the little cups to dump in my cup is a waste of time and it dirties a cup (and it seems it would irritate people waiting to use the machine).
We've done the Exotic Rasul on both our cruises. The first cruise my parents were along and we said we had a "couples spa appointment". Then later we gave conflicting reports as to what the spa treatment entailed. Whoops...