I keep the small stuff in
plastic storage bins. They provide high storage density but they're still easy to get into when stacked no more than two high on a shelf (one high is preferable). Being translucent you can tell what's inside them if you're up close but standing back they look fairly tidy on open shelving. They do a good job keeping out dust and rodents.
Cabinets can be preferable for some items. There are tons of outfits advertising "garage cabinets" these days. Must be an in thing. When you actually look at what they're selling it's usually the lowest grade particleboard cabinetry. Looks tolerable at a distance but not sturdy enough for serious gearhead use. Any cabinetmaker can build decent quality melamine coated or paint grade MDF or plywood cabinets at a reasonable cost.
For closed cabinets I would tend to lean toward metal, especially for flammable chemicals. Industrial metal storage cabinets can get pretty pricey. Sometimes you can find good deals through industrial liquidators. Office grade metal cabinets aren't as sturdy but are generally stronger than cheap consumer cabinets. Look for an office furniture liquidator for used units or check with Office Depot, Staples, Costco, etc for new ones.
For drawer storage I like to use steel tool chests and roll-aways. They're rugged, portable, reasonably priced at Sears and Home Depot and there's no installation. I line the drawers with the ribbed vinyl floor mat they sell by the yard at Home Depot, Lowes, OSH, etc.
If you mount casters on the wire shelving you can pack them tighter together because you don't need to allow enough space to walk around each one. Just roll out the one you need and roll it back when you're done. (Here in earthquake country always remember to lock the casters.)
PC.