Inglourious Basterds star Eli Roth told People that Brad Pitt gave him some on-set hygiene tips:
"After a scene, Brad had to get next to me for a close-up shot, and he
said, 'Damn, you're ripe.' I said, 'I didn't have
time to shower.' He said, 'Baby wipes, man, baby wipes.' I got six
kids. All you've got to do is just take them, a couple quick wipes
under the pits. Man, I'm getting pissed on all
day. I don't have time to take a shower.' I thought that was the greatest tip. My character is called the Bear Jew. If I ever
started to smell like a bear, I would just use a couple baby wipes
under the armpits, and it made it safe for everyone else to act around
me."