We just did the bulk of our wrapping and DH wants to leave the stuff for our girls under the tree...
Our DD's are 3 & 6 and totally believe in Santa. I've kind of perpetuated the myth in our house that Santa brings the stuff on your list so they just ask for one or two things. That's in separate wrapping, hidden in a cupboard. (Hatchimal x 2, Lolly maker and paints!)
This is (pretty much) everything else.
My worry is.... it doesn't look impressive anyway... but it's going to look even less impressive Christmas morning when we just add the four Santa presents to it.
Don't you think we should keep it all locked away until Christmas Eve / morning reveal?
(In our defence we have given the best stuff to my mum! As we're going there for family Christmas morning straight after and they need stuff there! Still not loads though!)
DH thinks I'm being ridiculous and we should leave it there. I'm thinking he can't be fucked to carry it upstairs and doesn't care that it's the first year our three year old has cared about Christmas! 
I'll go with the majority !