Suggestions on rental with tile flooring throughout house

[Ryan Pal]

hey guys, i'm fixing up a rental that has tile floor throughout the entire house.  while the tile is clean, it has a cold feeling to it.  also, being that i live in nj, it can be cold in general during the winter.  after reading various forum posts some people like tile throughout while others hate it.  

i was thinking about doing a floating floor on top of the tile and i see that many members on the forum recommend vinyl allure flooring for rentals.  while i would consider this, if im going to put a floating floor, i believe it's best not to gunk up the tile below with glue.

any suggestions of what to do?