By far the biggest boost to my efficiency is using the same stackable containers for prep and storage instead of just random bowls. Even if they don't have measurement marks, just using the same containers all the time lets me measure by sight for ingredients that don't need to be precise. It also allows saving space on counters and in sinks.

Commercial cooks from fast food line cooks to Gordon Ramsay may be rolling their eyes at this basic fact right now, but most cooking shows and videos don't seem to show this strategy.