I haven’t checked a bag in five years or longer (I also have not gone on any trip in excess of a week), so I pack everything in my carry on, which ensures less handling (and better handling when there is) and that nobody is going to steal anything. I cushion makeup bags or palettes between sweaters and pants–anything thick and soft–or else keep it in my shoulder bag.
No, I don’t think I have any brand loyalty. Initially, sure, I was using about 99% MAC products, but the brand is such a perfect gateway drug–the price point is less than other high end brands but you get the same “experience” of the store/counter, range of products, etc. Plus, with something new rolling out every few weeks, you never have time to go anywhere else! Since I started blogging, though, that has all gone out the window, and it’s given me a better appreciation of what goes into good/bad products and what works and doesn’t work.
I find that certain cream/liquid foundations might work in such a way, if one uses them regularly and wears them for prolonged periods of time. Anything that actually stays on the skin for hours may be effective, but it really depends on the potency. Nothing really comes to mind, though.