Not sure if any of this will be of any help to you, but here is the good, the bad, and the ridiculous:
I use plastic boxes (mostly shoebox size) from the dollar store to organize different categories of items: micas, spatulas, additives. Some larger plastic totes corral the smaller bottles of expensive oils and syndet supplies. All of those things, plus my molds, cutters, mixing bowls, etc. take up 1.5 large (3'w x 6' tall) cabinets in the family room.
My bulk soaping oils and bath bomb supplies take up a good portion of the pantry cabinet in the kitchen. All scents are in the large credenza in the front entryway. Curing soaps are on a small rolling rack + a bookcase in the spare bedroom. The insulated boxes that I use for gelling soaps are in the closet in that bedroom. Used soap dishes awaiting wash day are in a tub out in the garage.
We will be moving in about 3 weeks, so this is a great time for me to do some advance planning about how to get as much as possible in one space. I currently soap in the kitchen, but my husband has suggested putting a folding table in the spare bedroom for me so I could have everything in one room and just soap in there. It's tempting, but then there would be no room for guests. Would that be a bad thing?