Being lazy! For me, I curl my hair when I don't want to wash it. Sanitary I know. Although my hair curls well when clean, the curls seem to last longer when I haven't just washed my hair. And skipping washing and blow drying saves me a good 30 minutes. I am all in for sleeping in late!
So here's a little secret: I haven't washed my hair since Tuesday. Shh!