Of water, that is.
I get a very large thing of water (the big blue plastic containers seen most often in office settings) as needed via the milkman, but up until recently I had the Teen to help me hoist it and funnel pure spring water into 2L bottles, which we'd then keep in the fridge and then refunnel into smaller bottles for various excursions.
Yesterday was my first time tilting the vast blue jug (for want of a better word) on my own. I tried to manage 18 litres in one hand and a 2L bottle with funnel atop in the other. Didn't take more than a few seconds to realize this defied the laws of physics and my own capabilities.
I found a compromise, though. Large 18L jug sorta of leaning on the kitchen counter into a tall water glass; then pour contents of glass into plastic bottles via funnel.
It takes some grunting and a wee bit of spillage, but it works, and it means I don't have to drink tap water.