My laundry cocktail:
I use Kirkland (Costco) liquid detergent
1 cup of white vinegar
Softel (again Costco) fabric softener. I use this combo for everything including towels. When I add the softener to the dispenser I also add 1 equal part white vinegar and then the rest is water.
I wash everything in cool water - except bra's which I soak in hot to remove deodorant stains etc.
For all clothes/linens I also use a dryer sheet, Costco brand. I don't use the dryer sheets for towels and I don't use fabric softener on any of the UnderArmour items we have.
White vinegar has become my laundry staple. I discovered it when DS was in high school and I was dealing with the boy funk sweat smell from all his athletics. It also helps darks retain their colors