We are approximately 25 miles from towns with TSC, Orcheln's, Atwood's, Ace Hardware, Wally World, etc in 3 different directions. There are smaller closer towns with no hardware and one 12 miles away with a small combination furniture and hardware store that has a few things. Just a couple miles away there is a trailer manufacturer that retails trailer stuff, welding supplies, and a modest selection of nuts and bolts as well as 80lb bags of Redicrete.
If (and that is a big if) the trailer place has the hardware you need you save a 50 mile round trip so paying 2-3 times normal retail is quite welcome.
Much more practical, especially with today's fuel prices, is your own stock of a fair selection of common fasteners. You can easily afford to tie up money in stocking some fasteners when compared to the hassle and cost of a trip to get one or two nuts or bolts.
So in self defense I stock some hardware. I have some HF bins mounted on the wall to hold 5/16, 3/8, 7/16, 1/2, and 5/8 nuts, locks, flats, and 5 lengths of bolts.
I built a cart to hold hardware too. I bought some HF bins and assembled a pair of them back to back and put them on tall legs. I put more bins at one end. IT is a work in progress, I will buy a couple more HF bin sets to install under the top two and probably add some shelves to use the enclosed volume below the bins or maybe hinge an end and put bins on both sides as well as having shelves.
I have an assortment of drywall screws in interior and exterior grades as well as using bins to hold boxes of hardware. I put the whole thing on caster wheels for convenience.
Buying at a big box store and to a similar but lesser degree, buying at TSC, Atwood's, etc is strictly caveat emptor as the "associates" only associate their time with their hourly rate and typically have little clue about the products. I gave my wife a detailed note to take with her to Home Depot. I asked for the PVC conduit fittings that let you run PVC conduit into a j-box and secure it. The "knowledgeable" assdashociate (gaming the censor routine) sent her out with a package that clearly stated on the front that it was for putting metal armored flex conduit into a j-box. There were 3 other similar items on the list. Of 8 or so items I wanted, only 3 were correctly handled, 1/2 inch PVC conduit and 45 and 90 degree 1/2 inch PVC elbows. I don't expect experts but I do expect they should be able to read the label and know that armored steel flex conduit is not PVC plastic!
Anyway here are pix of my bins. I have other supplies but they are not as photogenic or organized yet.
To expect that customers will not mess up the contents of hardware bins or expect store personnel to sort them out is truly misguided wishful thinking not at all congruent with reality, unfortunately. I am one of the few who when changing their mind will return an item to where I got it. What bothers me more than homogenized hardware is homogenized milk or other "needs refrigeration" items left laying somewhere (not in a cooler) by a customer and then some store person just returns it to the cooler. How many hours at room temp does it take to maybe encourage bacterial growth in a steak or bottle of milk?
In the one picture you can see part of my DeWart collection (DeWart is Chinse for DeWalt) I would dearly love to not have started the collection and have Ridgid instead. I ran out of shelf space and made wine glass style hangers for some of them (more to come.)