My daughter helps me bottle. This idea came to me to make it more efficient with the 4 hands we have. It works great! I attach all 4 wands when she's helping and my 7.5 gallon batch is bottled in about 20 minutes. Faster if my son runs the capper.
I use a PVC 90 on the inside screwed onto the valve threads to get almost every drop. The Rubbermaid Tote (food grade) has contours in the bottom which make it even easier because the PVC 90 ends up in the lowest spot of the tote.