It's easy to get overwhelmed with all the products. Moisturizer! Primer! Foundation! Sunscreen! Cover stick! Setting spray!
That's before you even get to lips and eyes, and I haven't mentioned all the bronzers, blushers, highlighters, color correctors, etc.
I find that the more my face ages, the richer the moisturizer I want to use, and therefore makeup can just slide off. I no longer do any eyeshadow because crepe-y eyelids and eyeshadow are not friends.
There is something about the foundation brush made by Il Makiage that really is somewhat magical. And the slanted eyeliner brush by Mommy Makeup is marvelous as well, if you use gel liner.
Interesting fact: when I was doing crisis counseling by text, a number of texters cited makeup videos as something they would watch to calm down.