Being a Mom while Trying to Start a Business- Organization!

Trying to be a Mom of two small kids under the age of four while starting a business in a 900 square foot apartment definitely has its challenges to say the least! I'm finding that organization is absolutely key! I'm in serious need of some child proof organization for all my supplies but I just don't like the plastic stuff I see in all the stores. I would love to get my hands on some old letter press drawers to slip under my glass covered ikea desk. Does anyone have any idea where I could get some for a decent price? Or would anyone be able to make something similar for me for a decent price?