I have a small under the counter, frost free freezer. Instructions tell me to check it annually to see if there has been any frost built up. I did a few weeks back, and there had been none. I just took out the two drawers and put, them one on top of the other in my spare bedroom next door to my kitchen and placed the other items from the top shelf on top of those. Only took me about ten minutes to wipe down the internal part of the freezer. Then I checked each drawer etc. and have a typed list on the front of that.
Before I moved into my flat I had a very large upright frost-free freezer in my Utility Room. TBH, being so large it encouraged me to fill it up with all sorts of things that I purchased knowing I could store them. A lot of these items eventually ended up getting thrown away - and whereas, I do miss the room I had in that big one, I am much more disciplined now that I have the small one, and do not not just purchase food items for storing in there, so have far less waste.