Please may I join? I know I'm late but I'm not just starting out, I began a while ago. I think I actually saw this thread ages ago and it clicked something in my brain to start. I set myself the challenge of decluttering and decorating the house for a party in mid december.
So far I have:
Decorated the living room
Cleared out half of the cellar (took loads to the tip, will do the other half when dh has a day off)
Sorted out our DVDs, CDs and books and got rid of what we no longer wanted
Gave our bookcase to fil which he wanted for his greenhouse 
Put all my cookery books on top of the kitchen cupboards
bought a lovely dresser in a charity shop and put the remaining books in the cupboards and displayed nice things on it, also made space in the utility and put the bread maker in a dresser cupboard
Bought two lovely wicker baskets to put sticks in for the fire that were just lying around
Got rid of the CD and DVD stand things
Decorated the dining room
Put up 3 floating ikea shelves in the utility room for storage. Bought loads of jars from ikea and filled them with flours, sugars etc and put them on the shelves. This cleared space in the cupboards and it looks nice.
Put another shelf up in the kitchen to get things off the small work surface
Got rid of loads of utensils/glasses/pots and pans I never use
Got rid of all the mismatching mugs and replaced with matching naice ones
Bought this worktop thing from ikea so we have more space to work and more storage space, and it matches our ikea kitchen perfectly
Painted the utility room and half the kitchen, still got 2 walls to do
Hung up all the pictures that were lying around for ages in the kitchen
Sorted out and got rid of loads of toiletries in the bathroom
Sorted out our underwear and pj drawers. Got rid of any that had holes/ were old etc
Painted our bedroom
And in-between I've made some bunting that's now up on the dresser
I think that's all I've done, probably will think of more though, I've been on a real mission. Still to do:
Today I'm decluttering the kitchen, so:
Sort out and tidy cleaning product cupboard
Sort and clean all cupboards
Clean out fridge and freezer (so full I can't even open 2 drawers and need the space for christmas food gifts I'm making)
Clean oven
Clean dishwasher
General deep clean
Sand and oil worktops
Paint remaining walls
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Then left to do is:
Paint bathroom
Sort out dh's wardrobe
Paint dh's wardrobe, our large chest of drawers and 2x bedside tables
Sort and tidy cupboard at the top of the stairs that's full of my craft stuff as you can't even shut the door
Sort out the spare room. I have 9 rails and 1 wardrobe whose rail is about to collapse, full of clothes
I need to get rid of what I no longer want and actually hang up the clothes that are all over the floor 
Sort out/get rid and tidy my shoe cupboard
General white paint touch ups around the house that need it
Borrow my mums steam cleaner and use it on the living room carpet
Clean tiles/grouting in bathroom that are looking a bit grubby
Buy and put chair covers on the dining room chairs and put new cushions on (gingham ones from ikea) Between me and the cat, we've ruined the chairs. He's scratched them to within an inch of life and I've covered them with multiple paints
Then I should be at the stage where I can get everywhere gleaming so:
Clean all windows
Give the wooden floors a good scrub
Etc. then I will have a hopefully perfect cottage for Christmas and the party 
I might put some photos up on here when I'm done to spur me on. Already do have a little living room pic up though :)
Sorry for the massive post! 
I can't wait to collapse with a baileys at 2pm Christmas eve 