I bought some boxes like these:
View attachment 76608
Someone else mentioned them in the forums, and I think it was
@Ford, but I may be wrong.
They work perfectly for storage in the house, as well as for transporting. I use the boxes for both scenarios.
The divided areas make it easy to keep one scent of soap separate from others as well, and they don't take up much room at all in the car. The lid keeps the soaps protected from sun coming into the car & also allows me to put my 'business bag' with all of my receipt books, order forms etc on top of it, so I can easily carry everything into shops when needed.
You can easily fit 75 ++ bars into one of these boxes. If need be, I put in a little bit of tissue paper or left over bubble wrap or whatever to keep bars of soap from moving around as I am driving or carrying the boxes.
It's an inexpensive solution which is very much multipurpose. The boxes are also very strong. I will be using them for years. They store very conveniently when full of soap on shelves, under sofas, whatever the case may be due to their shape & size.
The other nice thing about these boxes is, even if you buy 10 of them, they come flat packed, so they're easy to store under or behind something until you need them. Just put them together when required.
I really love them