I'm not careful when I do laundry. Period.
I put it all in a rubbermaid type bin upstairs, Scotty carries it to the basement for me and dumps it on the floor. Then I scoop up an appropriate amount of clothes to fit in my front loader, dump some liquid (we use Purex) detergent in, some liquid fabric softener, turn it on and walk away. Over the years I've only had the occasional pink sock. Now I know not to wash Sophia's red fleece sheets with anything else. Occasionally I'll sort out all the white stuff to put in a "Bright Whites" load with some bleach and bluing.
In the summer I hang my clothes on the line when I can...mainly because I love the smell of line dried clothes. The only time I sort is when I'm pulling the wash from the washer, I fire all the underwear and socks into the dryer so I don't have to have all sorts of niddly-bits on the line. Otherwise, anything goes.
Scotty has a lot of tech-gear and a lot of sweaty, icky stuff from work. It stinks going in, and smells good coming out....always has. Only garments that have given us grief are a few of his old cotton PT shirts that I've since made him replace. Cotton is bad that way.
The funniest part of it all is that even after washing and drying (line or dryer) ALL of Scotty's shirts smell like his cologne at the front collar. I don't mind this one bit. My neighbours think I'm odd for sniffing all the shirts as I hang them on the line.