In the last couple of months there's been a slew of articles about how dirty planes really are and what passengers can do to stay clean and not get sick.
Tips given are steering clear of coffee, tea and anything that requires tap water because the tanks are hard to clean and have a higher likelihood of bacteria. And clean food trays and seat back trays with anti bacterial wipes because they are often used as baby changing stations. I've also read to bring your own blanket, because they are often reused.
Any tips you'd like to share?