When you’d like to add the remaining soap from one bottle to top off a new bottle…
One challenge is the old soap makes a mess as it’s spilling into the new soap.
To help direct the flow, place a skewer, chopstick, or similar inside as you turn the old bottle on top of the new. The soap flows down the skewer (as pictured here).
If you tried this tip, leave us a comment below and let us know how it turned out!