Here we have the Ladder Top Tool Caddy, one of those why didn’t I think of that ideas!  Let us know what you think of this product.

The ladder top tool caddy is designed to set on top of a fiberglass step ladder.  A recess pocket snugly covers the the top of the ladder.  The center has an open tool and parts compartment, which has angled from front to back for easy access.  The back wall contains tool pockets for assorted hand tools, and a carrying handle that retracts back down into the box.  This will allow easy access to your tools.  Two hold down clamps can be mounted to the sides of the box for added support. The clamps have adjustable bolts for various size ladder tops.