Actually, yeah, I do. If I have to go out, I wear a mask. They're more effective at catching the infectious droplets that cause infection when worn by the infected person anyways, and even if it's not the flu it's something I don't want to be passing around.
I also get the flu shot, and at least for me, it's worked.
You have a reference for that? Last time I looked into it a few years ago when I was living in HK (lots of people wear cheap crappy facemasks when they've got a respiratory disease) there was no good evidence that it worked either way. You can say that "intuitively" blocks infectious droplets. I can say that well, maybe, it could also efficiently nebulise the droplets that do get through, making it even worse.