Ooh I thought of a new one:
I am a complete neanderthal when it comes to laundry. I just throw all my clothes in the washer, put whatever detergent I happen to have in, and wash them on cold. Jeans, tops, knits, wovens, whites, brights, darks...they all go in together. I only separate things that need to be handwashed. When you pay for each load of laundry, it's just more efficient. Even though I'm at home now I still do it because I hate the thought of wasting all that time on laundry, not to mention all the water and energy.
I also wash a lot of my dryclean only pieces on the hand wash cycle. It hasn't posed any problems for me so far. As far as I'm concerned, if an article of clothing exists, there has to be some way to "wet" wash it. There is no way a fabric, especially a natural fabric like silk, can exist which can only be cleaned in some alien chemical process! All of my clothes seem to come out fine.
Finally, I never iron. I hate doing it and I'm not very skilled at it. Instead of ironing out existing wrinkles, I somehow manage to create new ones. I try to avoid buying anything that requires a lot of ironing, but sometimes I forget or just don't know any better. Thankfully the washer at home has a wrinkle release cycle that works surprisingly well...but I won't be able to use it forever.
I do, however, dry almost everything on a rack, so at least that should redeem me somewhat...