I like this idea because these HF bins (I assume) are relatively cheap and making the shelf unit would be easy/cheap. The casters make it more useable.
My problem is I don't have enough of any one type fastener, nail, washer, staple, you-name-it to really justify a separate bin for each of them. My dad always had his stuff in coffee cans and I HATED having to turn them over looking for a specific nut or bolt and then having to put them all back in again.
I suppose putting similar things together is the best I can do.
This is actually a good point. It turns out that there is a symbiotic relationship between good parts storage and bulk purchases of parts.
The Harbor Freight bins are normally ~$9.00 and go on sale for ~$5.00-$6/00. I started using the Harbor Freight storage cases after starting to buy fasteners in bulk from places like boltdepot.com and Tractor Supply. Instead of running down to the hardware store when I needed something, I planned what sizes and styles would be needed and made bulk purchases in advance. Then there was this huge close-out sale on fasteners at Grainger that led to more storage cases that needed to be organized...
It makes a huge difference having the parts you need, when you need them - and an even bigger difference when you can actually find them! Not to mention the previous situation of having three of a specific bolt when you need four...
Building on the success of nuts and bolts, this approach extended to electrical connectors. Bulk purchases of high quality connectors from places like waytekwire.com is the only way to go if you are doing serious electrical projects. Like, as a totally random example, upgrading the electrical system on a 1963 Imperial.
It is really nice having the parts you need when you need them. And the tools to use them. And a good place to work. Plus the skills to do the job. Oh well, three out of four isn't bad...