I received a sample of the Bobbi Brown 'Intensifying Long-Wear Mascara' and I've chosen to use it since. It's not clumpy, stays on without smudging, and looks natural. I've heard mixed reviews about it so maybe start with a sample.
On days I am looking for a more dramatic eye I use the l'oreal telescopic mascara with the l'oreal telescopic primer. I usually get them at CVS or Ulta I always try to use a coupon at either place for them. For daily I tend to just pick up the Essence Lash Princess false effect for just running around with the kids an and errands.
I've tried so many different mascaras and my absolute favorite is the L'Oréal Voluminous in the Carbon Black color. It's buildable without getting gunky. I've used this for many years and it never disappoints! I usually buy it from Target but you can really find it anywhere.