c/d Class.. You are a tough one!
couple small alternatives based on ideas already mentioned:
-level (I think there are DIY recipes) your subfloor; 2 times primer; OSB on top; make a grid with black paint(squares or planks, up to you); 2-3 times polyurethane ; looks like bamboo; (this is to give the impression you're not the cheapest landlord with the paint); this could be repaired as easy as sand or level bump and coat on poly
-plywood: go with 2'x2' squares poly-ed or painted
-paint: look for "European floors"; just be creative but not too much for your own sake; of course exterior grade paint with primer under
-vinyl: could get scuffed/deep gauged by dragging appliances/furniture/chairs across; but it is installed by a lot of investors from b/c/d class
-carpet: external grade; cleanup is you take it in the yard and hose it off
also change your color scheme:
-baseboards and doors to gray (to hide the dirt they never clean)
-front door to red/blue/turquoise (something distinct)
-ceiling: primer
-walls: something greige (gray-beige); hides dirt/"paw" prints better
couple small alternatives based on ideas already mentioned:
-level (I think there are DIY recipes) your subfloor; 2 times primer; OSB on top; make a grid with black paint(squares or planks, up to you); 2-3 times polyurethane ; looks like bamboo; (this is to give the impression you're not the cheapest landlord with the paint); this could be repaired as easy as sand or level bump and coat on poly
-plywood: go with 2'x2' squares poly-ed or painted
-paint: look for "European floors"; just be creative but not too much for your own sake; of course exterior grade paint with primer under
-vinyl: could get scuffed/deep gauged by dragging appliances/furniture/chairs across; but it is installed by a lot of investors from b/c/d class
-carpet: external grade; cleanup is you take it in the yard and hose it off
also change your color scheme:
-baseboards and doors to gray (to hide the dirt they never clean)
-front door to red/blue/turquoise (something distinct)
-ceiling: primer
-walls: something greige (gray-beige); hides dirt/"paw" prints better