I pile stuff up neatly left to right and periodically (usually last hour on friday when brain is done, go through it and either move or bin it).
The goal isn't to have everything meticulously organised (that becomes a task that takes more time than you save, it's yak shaving for me at least) but to be able to find it quickly (few minutes) if I need to and crucially out of my sight line, at my desk it's completely out of view.
