Couple of options:
If you have enough headroom I have seen some put up heavy shelving and stack implements two or three high using the forks on the tractor.
Personally, I keep most often used stuff on dollies to allow moving them around the floor. If I could only store them where the tractor set them down it would be much more restrictive and inefficient. Also allows easily moving them temporarily to free up floor space near the door by easily pushing them around if I need additional room to work on something. A few times I’ve also rolled several implements over by the door and pretty quickly forked them elsewhere for a few hours or days to free up floor space and then set them back in when done. Sitting on a dolly, they’re easily moved with forks. Steel caster wheels, plywood decks, and reasonable 2x subframes are quick and cost effective to put together.
I also have a few implements that aren’t often used and don’t benefit from climate control which stay in this dirt floored shed. (i.e. generator in climate control; leaf rake in shed). There’s no rolling or sliding that stuff around out there. Most is way too heavy for manhandling and caster wheels useless on dirt. Quite a bit less user friendly but relatively cheap storage.
View attachment 93754
View attachment 93747
View attachment 93748
View attachment 93750
View attachment 93751