Boring I know, but I am interested as I have been doing the same for years, and the DH had the audacity to question me!
I generally use a 35 minute wash and have been using the Aerial gel (as it was on offer). My machine has numerous settings that vary from 2 hours to 3 hours, and I honestly cant see a difference when the clothes come out.
DH complains that his work shirts dont smell clean and the armpit area doesnt look clean - I argued that he needed new shirts! They are deep blue uniform shirts BTW. I generally dont do full loads as the machine can regulate the amount of water needed.
So what do you MNers use? Do I need to wash them longer or is he just a sweaty betty that needs to shower more often!!