Right, so I kind of live in a dump. I'm okay with this, because I'm a student and my apartment location is awesome. My landlady is super-cool, but the building I live in is really old and in need of many updates. My bathroom floor appears to be rotting, it's totally gross.
So, I went to Dollarama and bought some vinyl adhesive back tiles (three for a dollar). I didn't want to stick them directly to the floor, since I don't own the place and it isn't exactly a permanent fix. So I bought a plastic table cloth, flattened and taped it to the rotting floor, and then stuck the vinyl on top of that. You can lift it up at any edge, but strategically-placed bath mats make it look like the real thing!
I forgot to take a really good before picture, but here's an idea of what it was like:
And here it is now:
Now, if I could only get rid of the awful pink tile on the wall.