Today's the traditional day for removing all Christmas decorations. So that's today's mission!
However, before they are all put away, don't forget to bin all those that are broken or too tatty to give away. And try to give away at least one or two ornaments, lengths of tinsel, etc etc. Freegle is great for that!
If you've bought cards and wrap in the sales, make a note of where you've put them with the Christmas card list you did yesterday ;o) If you have oddments of paper left that really won't wrap another present but you've kept them 'just in case' - put them out for recycling!