I'm 3c, not 4a, but I feel exactly as you described above - I LOVE wash day and I spend hours on my hair. It can vary but is usually Saturday so I can look good for a night out, and church and family the next day. If I am performing on a Friday I'll try to do it then. Ironically it actually looks best a few days after washing so my best hair is always on Wednesdays, when I should be washing for good weekend hair if I were to have time.
Get used to me. Black, confident, cocky; my name, not yours; my religion, not yours; my goals, my own; get used to me. -Muhammad Ali