I use a metal drawer cabinet on casters that I got from IKEA
they cost $39.99 and has 6 drawers. Each drawer is the perfect
height for the embroidery thread.
I have 2 silver, 1 red and MOST of the drawers are full of emb. thread.
Here is a link to the cabinets I use.
HELMER 6 drawer cabinet at IKEA