Inefficient loading of the dishwasher.

You put the same things to the same place! So you can grab them as one when unloading, saving time.

You spread everything out! The more bunched it is, the harder it is for the water jets to hit and clean everything properly.

You put each thing into the most appropriate place! Big spoons go into the bigger bucket, small spoons in the smaller one, big plates into the row with the wider space between plates, smaller plates into the more narrow rows.

It's incredible how most people load their dishwashers, they mostly just put stuff in wherever is closest.