Core77

Ecolab's Proforce Cleaners bottle design, internally nicknamed "Legoland," cleverly fits a 16 oz. spray bottle within a 1.25 gallon refill tank. The boxy, volume-maximizing design is better for shipping pallets (98.5% space utilization) and easier to store in a broom closet.

Packaging geeks who want to read details about stress engineering modeling and optimized in-line filling lines, click here.

via a.m. steeman