I can't think of anything much more grinchy than just having a pile of stuff not wrapped or hidden in any way
Santa has never wrapped gifts here.
He leaves a stocking of 'bits' on the bed and then a sack of gifts, per child, in the living room (unwrapped but in a large, fluffy Christmas sack).
The dc wake Xmas morning, happily unpack their stocking then we creep down the stairs and they get the 'wow' and excitement of the three Santa sacks which have magically appeared in the living room, which they then unpack.
Wrapped gifts under the tree are from family. So after Santa, we sit and have a coffee and eat chocolate for a bit before sitting and unwrapping the tree gifts together - from Mum and Dad, Nanna, Auntie Sue etc.
It's bloody magical, not grinchy 😁 And it means we skip the stress entirely of wrapping all the Santa gifts, having special Santa paper to hide away or juggling and laying out lots of individual gifts on Christmas Eve.
On Christmas Eve, dh takes six tied black bags from our utility room. We take the black bags off, place three ready-packed sacks in the living room, three ready-packed stockings on dc's beds, stash the 3 x idential duplicate stockings from dc's bed in our wardrobe - and we go to bed. It takes us 10 minutes max and every year I'm more grateful we've done it this way!