Tweaks.
We know lots of really great tweaks here (how to raise water levels, how to use STPP to boost detergent performance, how to wise-up dumbed down temps, etc.) but we need to face the fact that we are enthusiasts. We've paid attention, done research, and found the best ways to get the most performances out of our appliances. That being said, such tewaks often result in the need to more closely monitor the machines, more carefully operate the machines, and the need for increased maintenance.
I really wouldn't try such tweaks for someone who is careless with their appliances. Yes, we can make appliances really perform, but should we? Most appliances are designed for the lowest common denominator so that almost everyone can use them. This leaves people like us somewhat disappointed because we know they can be better. Most appliances just aren't designed for us, but are designed to appeal to the widest audience possible.
Sad, but true,
Dave