When taking photographs on a sunny day, I typically find myself holding the actual camera with my right hand, while using my left hand to cup the space between my face and the camera's optical viewfinder so I can see some actual contrast without being dazzled by the Sun.
This is fine with small, light-weight lenses. It works poorly with really heavy ones.
How do other people deal with this? Is there some kind of product you can buy that shades the viewfinder for you? Or is this just a case of more expensive DSLR bodies having a better viewfinder design?