I'm having hardwoods installed on my main level including the kitchen soon, and as luck would have it, my washer/dryer are located on the far end of my kitchen, across from the fridge
I will get one of those tray things for the washer, not w/ the intent of protect the floor from denting, but from water, in the hopes that it will contain small amounts, and I looked at a large size that would perfectly fit my fridge - I am considering this, as while I have never at this point had issues w/ the washer, my fridge up and malfunctioned and leaked all over my current linoleum floor a couple of years ago. If this doesn't look terrible and block the front vents, I am going to try this.