In that case, I think it is better to organise to make things easier to put away than they are to get out again. Your motivation level is higher when you want an item than it is when you’re finished with the item. If you make your storage system categories so fine that you can lay your hand on an item in an instant, you increase the level of effort required to put something away in the system in the first place. Over time, the result is that items collect in a “put it away later” pile outside the system, because putting them away is just too hard.

My tip for messy people would be to err on the side of making it brain-dead simple to put your stuff away, even at the cost of taking longer to locate the item when you want to use it…. It still won’t take as long as locating something in the “put it away later” pile(s).