I have trouble with the staying power of foundation, especially when I'm in the office all day, have been told previously to set it with powder, but have never been able to find a good powder to do so. Now I've read/heard a couple of times recently that setting makeup with powder is a bit passe? Is this true??? Apparently powder makes your skin look old (have experienced this!) and causes photography issues. Do I just keep looking for a (better) anti-shine primer instead? Very confused!