We don't do December 1st Boxes - I've never heard of this!
We do however do Christmas Eve Boxes -
New Pyjamas (That get worn all year and then passed down)
Bath Bomb
Our special The Night Before Christmas book that comes out each Christmas Eve for us to read with hot chocolates
59p Christmas activity book from Home Bargains
And some chocolate coins.
We have Christmas bedding bought years ago that comes out in December too.
No Elf on the Shelf in this house, and just some simple chocolate advent calendars.
I don't add alot of tat to their stockings, they tend to just get some stationary, chocolates and any bath bits.
For us, Christmas is spread throughout December, with movies, light trails etc.
I can guarantee some of these people who are not answering the OPs original question and are banging on about consumerism probably buy aload of rubbish to bulk out stockings/presents on Christmas day, and throughout the year too. And before you get offended, I said SOME not ALL.
So do what you like, what you can afford and what makes you and your family happy. Because at the end of the day, its all about memories, and if your kids love, say elf on the shelf (bleurgh lol) then keep doing it, as they'll remember it growing up and when they are older. They won't be this little again.