Hmm.. Sing in the shower, sing in the car, sing in the house, and compromise by just whistling when I'm out. 😀
My latest shower favorites have been michelle Branch tunes, I adore (Color me bad), Angel (Sarah M), I Do (Paul Brandt), some classical choir thing I cant remember the name of, nor understand the words cause they aren't english, If I Ever Fall in Love (Shai), some Blue rodeo, Eva Cassidy, and Norah jones. Oh yeah, Lady is a Tramp (Frank Sinatra). Also a ton of more alternative stuff. I'm not really locked into one type of style, I think it's fun to practice singing in different ways.
Can't help it. If I go too long without singing I start to feel constricted.