Basically I'm including everything that's not loose. Whether it is 2-way cake (used wet/dry), or pressed powder, or powder foundation, I'm putting it under this category. It can be a little confusing, but I opted this way to count it anyway. :P
The way I use these are mainly to set my concealer. Other times I use them, either with a sponge or brush, all over my face on top of sunscreen for extra coverage. Rarely do I use the in conjunction with liquid foundation or BB cream, as that will be too made up for my taste.
I have also forgotten to filter out the few which are too dark - I used them as contour, not face powder... They are the MAC MSF and Canmake... anyway...