There are several plastic boxes, mostly clear, sold in the market. They vary in sizes and features, but what I love most are the section cases from a Japanese franchise of general merchandise, known locally for its cheap fixed retail price.
|Cleaning lady readies the rooms of minifigures and parts|
Each case has 12 small sections, which fit one assembled minifigure or 3 disassembled minifigure.
This is a must have! ;)