I have always worked with animals so for me I always shower at night. The only time I ever have a shower in the morning is to wash my hair. I only wash it twice a week or it dries out to much, I have very thick long hair that takes hours to dry and I don't like blowdrying it much and wont go to bed with wet hair. I also shower in the morning if I am going out somewhere (not the shops) during the day, but it always just a quick wash.