I don't buy expensive makeup. I've used a few fancy eye shadows and lip glosses in my day but my conclusion has always been the same: they are nice, but Cover Girl does pretty much the same thing.
That said, I have been buying the same mascara since my Mom let me make the transition from clear to black. MAX Factor Stretch and Separate is my favorite. It seems to work best for my eyelashes. Sure, just like razors, I have been lured into buying the new fancy mascaras that have come out but I have always gone back to my $5.94 tube. I'm happy with it. It stays on the best, it doesn't clump and it really does stretch and separate.
I was at Wal-Mart a few weeks ago and remembered I was out of mascara. I went to the makeup aisle and of course, my usual stuff was out. I remembered that someone once told me that Great Lash by Maybelline was the best selling mascara. It's the one with the green and pink tube. It was $1 cheaper than I usually spend, so I put it in my cart. Boy, have I been disappointed. It's messy when I put it on because it gets all over my eyes and it's tough to wash off. What's weird though is it's easy to smudge and if I get teary eyed at all, I look like I have a black eye. It doesn't make my eyelashes look any longer. Instead, it seems like it makes them look shorter and thinner.
My conclusion is that maybe mascara is like shampoo. Everyone's lashes are different and they do well with different mascaras. Maybe Great Lash is the Herbal Essences of mascara. It's popular because it's cheap and does the job for most people's lashes.
What kind of mascara do you use?