I know this is about the faucets but you also mentioned the inside of the fridge. With my old fridge I used a sheet of white board material which I purchased from Lowe's on the cheap. Here is a picture of my fridge with the white board installed, made a big difference in the space inside and shouldn't change the efficiency of the fridge either.
Another plus is it allows you to write the details of each tap (if you have more than one) on the inside of the fridge.