I put important plug in and cordless tools, drills, plumbing box, electrical box, tote of screws, 4' level and square, plumb bob, cleaners etc etc; And then it rains when I least expect it. Now my tools don't look so great anymore 
I just can't be bothered after 12 hours of work and 3 in the machine shop and it always seems to rain when I get it all organized.
Best thing for me was to buy 4 maybe 8"s high Rubbermaid storage containers and keep things in there with 1 qt or 1 gallon zip lock bags.
All the clear boxes, Sterlite and others just break so easy it's a joke. They last me literally 1 job!
I still screw it up (and weather forecasts are a joke of allot of "maybe's" ), but, I need ALLOT of tools for this business. It is so full, I cannot have passengers even with the extra cab and a 6.5' bed.......
The new Tacomas are all gonna come with a larger extra cab and a bed less than 5' long; When did they forget that it's A TRUCK!!!! A shorter bed is useless when you need sheetrock and plywood 
So, when this 03 Tacoma dies, I'll try to find another styled Tacoma but I will never buy a new or used Tacoma with such a short bed, yeah, let's ruin the interior of the extra cab. Thanks to the genius that designed these!
All our government does is distract us while they steal from us, misspend our tax $ and ruin our country