I bought my Philosophy Air-Brush canvas make-up from QVC back in January 09.  I'm only 1/4 of the way through the container!!!  I use it everyday to give a fresh, dewey look to my face.  What I love about this product is that it doesn't settle into any fine lines and gives a smooth, natural look to my skin that I love.  At $35 per unit, it seems a bit expensive, however it lasts and lasts and lasts.....

Wonderful product and if my supply EVER runs out :)  I'll be buying it again.