I just came across the seven day black and white challenge and it's exactly what I love.
The rules of the game are as follows;
7 random black & white images that represent an aspect of your life
Present one image every day for seven days
No people
No explanation
Nominate someone every day. Although anyone can join in
Use the tag: #sevendaybnwchallenge as one of your five tags
I hereby nominate @xtrim for the seven days black and white challenge