The phrase "to bring a towel" means to remember to bring a towel with you when going somewhere or doing an activity where you may need one for drying yourself or cleaning up.
Sentences with «to bring a towel»
Please bring a towel to lay your baby on during class as we explore this soothing and rewarding technique. (dayonebaby.com)
Bring a towel in case your dog gets wet or muddy. (petcentric.com)
Just bring your towels and sheets or linen hire is available. (wikiaustralia.com)