I just have a shelf rack in my barn with cardboard boxes with parts in them. Some of them are even labeled 
Now that's funny!:thThumbsU(hitching up pants and putting on my best Barney Fife voice) Weeeellll, what you need hear is a organizing system built on discipline, diligence and detail. That's ol' Barn's 3 D's of organizin' success. It ain't easy and not every man can handle it like I can. Now, repeat after me: "Discipline!", "Diligence!", "Detail!". I CAN'T HEAR YOU! Good, that's better. Now, as a highly trained law enforcement officer I have an advantage over the regular man so to me it's second nature. You may find it hard at first but with some practice even you can make it work. Just repeat to yourself the 3 D's every time you have some parts to put away...every body now, "Discipline!" "Diligence" "Detail!"
(at this point Andy mercifully comes in and puts a stop to the tomfoolery by saying something real homey like, "Well, now, Barn that's quite a system you've got there...say, everyone, let's go to Mt Pilot")
Hee, hee. (I am from MS so I can say this. Do NOT attempt this type of humor if you are from north of TN)I keep most of my Gravely parts in a schoolbus....
And they're pressed too.I figure if the wrenchin' pants are deep enough down there, the dirt has mostly rubbed off on the other clothes and I can wear them again.
Shooting low on qty there...With most Gravely guys, it would be both.
You get what you pay for. I started with Sharpies. Now I use the Brother One-Touch. Much easier to read.Sharpies are cheaper.