Insulating The Floor And Building Cabinets For My Tinyhouse

my floor still doesn't have any insulation whatsoever so today im tearing up the flooring and adding a layer of rigid foam board. while I got the floor ripped up I'm also going to run some water lines through the floor to hide them and keep them warm. I'm also starting work on the kitchen cabinets to give me some extra storage space. but the rest of the kitchen going to have to wait until the spring.