Gregory's Server@AngryBull007 the simplest and probably most foolproof I have seen for liquid soap is a (clear, so it does require vision) bottle with a little reservoir fed from near its top by a thin tube from the bottom of the main container. Open the lid on the reservoir, squeeze the main, reservoir fills, unsqueeze, main sucks back the excess from the reservoir (so, leave some headroom above the target level, for inaccurate squeezes). Then, holding the whole bottle, pour out of the reservoir.
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 @AngryBull007 the larger problem with plastic is when it is disposable plastic. The bottle is durable, ideally, you would use it for many refills from a larger supply. HOWEVER, the default product delivery (for that product) is not via refills, but new bottles, so, that's a flaw. |
@dr2chase I thought of something similar, but I wasn’t sure how usable it would be for the target audience.
I think corporations will probably be able to replace the plastic shell with some other material.
They absolutely have a profit motive to do so.