Last week when my friend Lisa came over to go through my giveaways she commented that my cast-offs where always “especially soft.”
I do enjoy extra soft textiles, and I achieve the broken-in feel with a double helping of softener.
Going against tradition, I add the liquid softener with the detergent and booster while the washer is filling. I always start with a little bit of hot water in the load to help dissolve the soap and dilute the softener. I don’t ever use the separate softener channel which usually just gunks up over time. 
In addition to liquid softener in the wash, I add dryer sheets to the tumble. Double softness = double happiness. Don’t you want to be known for your especially soft clothes, sheets, and towels? 