How can u not afford to keep a cat? It eats what you eat but like 5% of the quantity and it cleans itself. Also makes you feel happy. If you have no money you can use it to offer a service for rodent removal, or have her hunt rats so you can at least have something to eat if stuff goes really bad and you're broke.
Also you can use it to write content for your sites. In case you never thought of it let me show you how:
Take a cardboard box and make it the same size as your keyboard. Just the walls of the box. You put that box around the keyboard and put the cat in the box with its feet on the keyboard. Make sure the box is tall so the cat doesn't jump out. Have something dangling above the box and a fan to blow air on it and move it continuously. that will keep the cat active and moving otherwise it gets bored and sleeps and doesn't write content for your sites. As that dangling thing moves, the cat wants to play with it so it jumps around and moves stepping on the keys and generating content. My cat, though jumps erratically is able to produce better content than some of those "writers" I outsourced to. About 40% of the content passes Panda and Penguin in my case.
Multithreaded aproach:
You need several computers. Lay down all keyboards one near the next one in such a way that they form something like a NASCAR track. Put cardboard walls around. This now looks like a track with tall walls. Put a mouse inside and then the cat. Mouse runs, cat cases it. Since the track is made of several keyboards as they run they write content on several computers. Also this is equivalent to a dual CPU multithreaded system since you have 2 animals inside not just the cat. If you experience problems with the cat catching the mouse too fast, add 2 or 3 mices and a cat and that will fuck up with her mind and give the mices longer time to survive so you get more content before you have to refill with mice.
PS: Make sure you use waterproof keyboards, the mice will bleed once the cat catches them.
PPS: You can save on mice if you feed the cat before work. That way she will catch but not eat the mice, instead she will play with them, let them go then catch them again.
PPPS: To see examples of content created like this - see all mods and admins on the following forum. All the replies are actually generated by cats and mice running on keyboards -
http://productforums.google.com/forum/#!categories/webmasters/crawling-indexing--ranking