Barf barf barf.
According the a new study, these are the grossest places in the gym...wash your hands after touching!! Eww, sick. Seriously you will get sick.
Group classes (small spaces, tons of people and germs!)
TV remote control (on ellipticals, treadmills, etc)
Bathroom soap dispenser
Kids play area
Read why here
Anti-bac up!! Or keep your workout outdoors, like me ;) Ok this doesn't happen on the total regular, but I give it my best lol.