SHEETS and towels are on my little list of OCD quirks. The big soft fluffy towels just don't get all the moisture off of me after a shower. Hang one on a clothesline for a couple hours on a warm spring day, and not only do you get a good absorbent towel, but it smells awesome too! My husband's nose is broken, so the smell benefit is lost on him... and the absorbent part he just calls "scratchy towels".
To each his own.
My "MINI me" has her own set of fixations. There should be NOTHING on her hands (even while eating with her hands), nothing on her clothes or bib (yes... even while eating messy things), and no spills in her bed or on her high chair. All of these are met with a demanding "MESS MESS" which is the signal for me to promptly fix said irritation.
Good thing she is more on the clean side than the alternative. Poor Hayden. The guy has to live with two neurotic chicks in the house.