Like most things, to an extent. I’m willing to, if it is a brush I’m going to use (and this is past experience speaking!) all the time. It’s important to me that a brush be enduring and made well so it doesn’t fall apart within a year, leak dye every time you wash it, or smell funky after a wash.
There are a few categories of sheers, and it really depends on the iridescence of the shimmer. They are very similar–it’s hard for them to be all that different. I don’t personally care for overly sheer glosses, but they have their place.
I like my ads to look like ads to an extent, but I don’t want it to be over-the-top and obvious. Women should look like women. softening fine lines are OK in regular ads, but I’m more frustrated by extensive airbrushing in anti-aging advertisements, though, since you can never tell the efficacy of a product by the ad.
I don’t think I have, but it’s been a long time since I’ve bought makeup off of eBay and the like!
I try to wear less makeup overall–I stick to tinted moisturizers and cream blushes, and then I set it all with powder. If you keep a blot powder in your bag, it can help freshen up any makeup that’s been hit by humidity, too.