The build

Another big step forward!! A floor.
Have you decided what sort of flooring you're going to have?

Some of it.
we’re having tiles in the porch & utility (got them, secondhand, that’s the space they’ll cover )
carpet tiles in wardrobes & cupboards (got them free brand new )
wood laminate in the hall and a rug runner ( got them laminate swapped for day’s work ) 
bedrooms & dining room something similar like the wood laminate with rugs ( I have the rugs all secondhand or gifts) possibly living room as well but would like carpet in there. Kitchen would like tiles but probably be vinyl. 

so the sort answer, whatever is the cheapest