Sorry to swear but this year was really organised and what the 3 DSs were at grandmas DH and I got the presents from the storage space in the loft conversion (which is DS1 who's 11 bedroom) and hid them in the pantry.
By 11.30 pm all 3 DSs were asleep which was fantastic considering DS1 was still awake at 3 am last year.
Start doing the sack filling and realise that all of DS2s presents are still in the loft room 
. How on earth didn't we realise we hadn't got all of the presents?? There was another suitcase!!
What a complete nightmare. DS1 is such a light sleeper. We had to sneak up there, lift off the cupboard compartment that hides the storage space, and pull out a suitcase that was hidden down the back. Don't know how we got away with it. 20 minutes later DS1 awake saying he's heard noises downstairs and complaining of tummy ache because something woke him.
Fingers crossed we've got away with it, as although 11 he still does believe (even if half and half). DH is currently lying with him.
Just got in bed and in all the panic realised I'd left the flaming elf (from elf on the shelf) downstairs. Santa is supposed to take him back to the North Pole so had to sneak back down again. Have hidden him in my knicker drawer!