My wife takes about 50/50 between her dslr and her smart phone.
As other people in this thread have pointed out, my wife takes quick pics with her smart phone. But when it comes to something important, like pictures of the grandkids, she pulls out her canon rebel ti.
For the point and shoot, my wife might use her point and shoot once in a blue moon.
Myself, since I do not have a smart phone, all I use is a point and shoot.