I wear a little bit of makeup on the flight-- very light base mixed with moisturizer and a little coverup (very sparingly). I keep a travel size moisturizer with me so I can glop it on over that and not need to worry about messing anything up (because I barely have nay makeup on anyway, just enough to smooth things out). I never wear mascara! But I do curl my eyelashes. I try and schedule haircuts or highlights appts right before leaving on a trip (obviously this doesn't always work out) then I have a nice blowout which looks great on arrival.