I got sick of filling a small PVA glue bottle from the 5 liter bucket as it is messy and takes up time that can be spent working wood. A few weeks ago I noticed that the nozzle of the dishwashing liquid sold around these parts has the same design as a Gorilla glue bottle. This design works very well to keep the nozzle from becoming stuck with hard glue. On the local PVA glue bottles you find a screw-top that is impossible to open after a few glue-ups. The 1.5 liter bottle helps to make the refills few and far in between. You can seen the PVA glue bucket I emptied in the dishwashing bottle sitting in the basin filled with water so that it would be easier to clean.
In the last few pictures you can see what I mean with the design of the nozzle. It is very easy to use and does not necessitate lots of meticulous cleaning to keep it functioning.