I spent most of this afternoon rebuilding my keyboard tray mount after the old one finally gave up. The original plastic brackets had cracked months ago, but I kept shimming them with cardboard until the whole thing tilted forward every time I typed. Today I grabbed some angle brackets from the hardware store, measured twice, drilled once, and now the tray sits perfectly level. The difference is immediate—my wrists don't ache after an hour of coding.
While I was under the desk, I noticed the cable management had turned into a rat's nest. I pulled everything out, labeled each cable with masking tape, and zip-tied them into bundles.
One common mistake I see people make is bundling power cables with data cables.