It would be nice to be able to put small rocks and sticks back on the ground. Your inventory won’t be such a huge mess after picking up some rocks and you can decorate surroundings with some rocks and sticks laying on the ground where you want them.
Suggestion: Put rocks and sticks back on the ground
Hrrm, I guess I should add that properly by now. As for picking up Rocks you dont need, if you wanna pick them up look at them and put them back on the floor, just use a Magnifying Glass on them.