I just started taking out the tile in the bathroom that's down, but once I started, I found there was old tile underneath it, and something else (but I'm not sure what it is). Basically, is there anything I should put down on the bare floor, which is now wood, before I put down the new tile? (My mom suggested really cheap tile)
This info probably helps.. its not actual tile. It's the sticky laminate stuff.

cheap b&q, topps tiles or should i go for more expenive/ middle of the range, whats the average cost for a decent tile?