The area that is lacking most for me is the kitchen. It is terribly small and there is no storage. When we arrived, there was a "pantry" (the marketing of the landlords), which was nothing more than the unused space under the stairs. It had a rickety shelf pushed to the back of the space, so it wasn't really a pantry at all. Both of us had ideas that we wanted to try our hand at canning foods to put away for the winter. Storage would definitely be a concern.
I took a trip to the lumber store and picked up a few L-brackets and about 6 one-by-four boards. The boards were relatively smooth finish and only cost $1 each. With some quick cutting, I was able to put up a series of shelves just wide enough to hold a mason jar or a soup can. I wanted the boards to be slim so we weren't knocking everything off the shelved when we turned around inside the pantry. I varied the spacing so we could stack cans or shelf tall bottles. At the back, where the space under the stairs got short, I put in a few deep shelves for cereal boxes. Concerned about vibrations from the overhead stairway possibly shaking down the goods, I squeezed a bead of almond-colored caulk along the front of each shelf. The cans will not walk past the caulk and after 4 months, not a single can has fallen. Hurray for our walk-in pantry!
The result cost less than $40 total, but has greatly increased our storage. The best part is that we have a place to put our canning next year!