I now have several tool boxes divided up by project for just that reason in addition to the main handtool box.. It does lead to duplication of some common tools but I would rather have two 19 inch tool boxes than one 26 incher I couldn't lift.
Every time I go the Sears I look at those roll-away tool boxes with extendable handles but then..... how would I get them in and out of the Jeep?