"Any site worker would know that portability, accessability,weight and space are prime considerations when carting tools and equipment around. My tools are organised in trade specific light weight metal boxes, Brick and wet trades, Electrical, Plumbing, Painting, Framing and a box with all carpentry hand tools. I have aditional boxes which I fill with other tools from my shop which I need for specific jobs.  When I go on site I just load the boxes I need for that days work. When I finish I just store them in my shop until next time. My biggest complaint with power tools are those which come in unnecessaary oversize plastic containers. I have two corded Protool drills (owned by Festool) which came in Systainers. One of the drills fits neatly in a 35 year old metal German AEG drill case. The systainer is 77.56% greater in volume than the metal AEG case. The other drill I put in an old Hilti plastic drill case. The Systainer is 196%, yes 196% greater in volume than the Hilti case. The plasic container my Milwaukee Sawsall comes in is far too large for the contents. The same for my Milwaukee 18v drill and impact driver combo is like a suite case, far too big. The change from durable metal containers for power tools to fancy non durable plastic containers  has made me go back to the pratically indistructable stackable milk crate. In one crate I can hold 2 corded drills, a screw gun, two rotary hammers drills, a battery drill and battery impact driver and battery charger. Easier to carry and far more compact. The systainer system and similar products are more for show than go and are an overrated and overpriced product. Before you go down the systainer track, sit down and have a big think about what YOUR needs and requirements are before you get seduced by promotional material and campaigns.     "