My dining room/ hobby room is in a bit of a state, I have a mismatch of furniture (none of which I particularly like- except my table and chairs) It has become the dumping room for any number of glass bottles and jars, old curtains, broken microwaves and my 'to be freecycled' collection. The floor is wonky and the book cases don't sit well, they can be quite wobbly

I want to take one of the modular bookcases (IVAR from Ikea) upstairs to be a wardrobe, with some nice fabric curtains and some fabric pockets down the side.
Now, I will not be buying any new furniture but I need storage space and to make the room look nice and be able to tidy it. I want to be able to use it more as both a hobby and a dining room - at the moment we squeeze onto one end of the table and the sewing machine (and associated crap) is permanently on the other end.
Anyway, can anyone think of ways I can make more nice storage without spending money (and preferably without needing a car)
I have loads of lovely fabric and wool but I just don't have the inspiration. I was thinking of some drawstring bags and a cover for my sewing machine, but that doesn't give me much practical storage... what I really need is more shelves or a big cupboard, or an extension

Any ideas?
Oh, I also have bits and pieces of 3x2 and 2x2 wood and some plaster board, and I am quite a capable joiner, so if any of you have ideas around that too...