I have never used lip liner...hardly ever even use lipstick (usually prefer glosses). Also blush because I haven't really found any colors that I love and I also skip eyeliner most of the time.
I don't use: mascara (my eyelashes are so long as it is; sometimes I'll wear clear mascara or vaseline for a special occasion, to make them glossier), foundation (my skin is very clear by itself), primer, or a bronzer (my skin doesn't do the color "tan" well - I always burn for real, so a slight pinkness gives me color. Tan has never looked good on me).
I rarely use lip liner, eye liner, or concealer, but will do so if I'm getting all dolled up to go somewhere.