My skin is too dry to shower every day, but I definitely find that getting dressed early in the day motivates me.
I also keep a "to do" list and force myself to complete at least one item each day.
Upbeat music gets me going - I stay away from music that brings my mood down.
Stepping outdoors for fresh air and taking time to see and enjoy whatever is there normally causes me to smile - and when I'm smiling I feel more energized.