Jars of nuts, bolts, screws and nails as well as drawers and pegboards adorned in a variety of P-touch label colors and type styles will always keep your hardware in plain sight.
Here's another workshop tip:
Use baby food or jam jars to store all of your loose nuts and bolts and label them with your P-touch.
Also, think about affixing the jar lids to the bottom of wooden shelves by screwing the jars in so they hang at eye-level, and are easily identifiable. If they're a bit higher than eye-level, place P-touch labels on the jar bottoms, as well.