For face priming, I have several products in my kit but I will talk about the Sephora smoothing primer because it's good for all skin types. The Sephora brand primer is amazing. You can apply it with your fingers or with a cosmetic wedge and the texture is like velvet. After applying the primer, I put on my foundation. I love this product because I can use it with my liquid, creme or airbrush foundation. My last step is to apply my finishing or setting powder and I'm done. I always carry blotting papers (Boscia Blotting Linens) in my purse for oil control but the foundation stays put pretty much all day.
OTHER NOTEWORTHY PRODUCTS:
Urban Decay Primer Potion aka UDPP- Another great eyeshadow base with ingredients similar to the TFSI
Urban Decay Complexion Primer Potion- I use this with my liquid and creme foundation only becuase it's pretty heavy and has a lavendar tint to it. It's great for minimizing pores and fine lines!
Thanks to Isis for the great question!