Haven't you always suspected there was an ideal way to load your dishwasher? There is! Every dishwasher manufacturer designs and tests for the most efficient use of water and pressure to produce the best results.
Every owners manual has practical suggestions for loading, it's best to take a look and see what they recommend. Can't find your manual? Search online by typing the brand name, model # and 'manual'. Or, this guy went to the time and trouble of downloading instruction manuals from essentially every dishwasher manufacturer in existence. There are some generic suggestions online, too, just search for 'loading dishwasher'.
It makes a difference. Try it and see if you think so, too. Dang, I just realized I loaded those small bowls wrong. See if you can figure out why.