The Trunk Caddy Insert (TCI) is an essentially rectangular storage system having a small rectangle along one long side to accommodate the tapered shape of many trunks and cargo areas. The Trunk Caddy Insert components interlock and snap together easily and securely to accommodate a variety of trunk spaces, cargo areas and personal preferences. TCI is manufactured in a variety of lengths, widths and configurations to accommodate the schematics of various motor vehicles on the market.