

I have this ugly 70s floor tile in my kitchen and bathroom. I can work around the colour, what's bothering me is the concrete grout darkening when it gets wet and the shiny permanently greasy looking finish on the tile, the floor never looks clean. The floor is in pretty good condition and I'm on a budget so I'm reluctant to just rip it up.
I'm thinking about painting the grout white and doing something to the tile surface to give it more of a matte stone-like finish.
What methods or products are available to knock the gloss off the tile? Could I just sand it? Would etching, or a tinted tile varnish in a matte finish work? I don't want to paint a solid colour because I just know someone's going to drag a washing machine or a fridge across it at some point.
Also the skirting boards were ripped out at some point, probably from water damage, what are my options as far as PVC or tiling or something else around the edges? Do I even need to do that or is it enough just to have the right surface prep and paint?