Cleaning has to be done every now and then. You can't avoid it. If you're using a space, you're bound to move things around. So things are going to be out of order every now and then. It's pretty normal. There are some things you could do to make sure things stay neat for a little longer than usual, but eventually you'll have to clean up because things will go out of order.
Try keeping a fixed location for the tv. Don't move it around. It's not something that really needs to be moved around. At most, rotate it if you have to.
Try keep the Xbox in a fixed location where you won't move it, and then keep reminding yourself that it should be there.
Wires can be setup, and then bundled together with a hair clip or hair band or something.
Food, well that's gonna create a mess. Gotta clean that up.
As for beverages, try using coasters so there are no stains on the desk.