Yeah, it at least always looks like this... top row for tools, bottom row for raw crafting mats (as soon as I hit 31, I move the 1 to the bottom row and put the stack of 30 on the third row, above the same mat, then it gets put in storage next time I go home) - anything else I try to organise as I get it, like if I'm collecting shells I try to keep them on the third row - my four daily fossils go down the right side column.
My row of tools echoes my tool ring also...
The clockwise order of my tool ring matches the left-to-right order of my top row in the inventory. Useful because it means I can, for example, select fishing rod from my tool ring and if I then quickly want to change to my net, I just hit left on my D-Pad to pick the "previous" tool (since D-Pad cycles through left-to-right/right-to-left order of items in inventory, not the clockwise/anti-clockwise order of your tool ring).
I have a stone axe and regular axe but only one in tool ring, so I can quickly pick the stone axe in my tool ring, the press right on my d-pad to get the normal axe. I think it's useful because with muscle memory the process feels pretty much instant. The order of my tools is important for this too...I have my ladder and pole next to eachother to quickly switch on D-Pad, then my net and fishing rod for the same ready, shovel and axe similarly - and my net, fishing rod, slingshot and shovel are all next to eachother (when using D-Pad at least) because they're the tools I use the most.