Make It Last
It's all well and good to arrive at work wearing a perfectly made-up, entirely appropriate face. It's less well and good to look like a streaky mess by lunch.
To make your professional look last longer, choose makeup designed to stick around. An eye primer can make your shadow last longer, and waterproof mascara is a must. You might also want to try dusting your finished face with transparent powder to "set" your makeup, finishing up with a long-wearing lip color.
Still, even the longest-lasting makeup will streak with sweat or wear off on a coffee mug, so carry a purse mirror and check your face at least mid-day, and preferably before any meetings or presentations. You'll most likely need to re-apply your lipstick or gloss, at the very least.
And finally, what may be the biggest concern affecting makeup-wearing professional women everywhere.