I try to go to a gym regularly but this year I have had two colds within the space of a month. As I am retired I could not have picked up a bug "in the office". Does anyone know how likely it is to pick up a bug in a gym. I do not shower and change there. When I am out in the hills I take a bottle of "something" with which I can clean my hands(forget what its called". Is it worth using that when I finish my workout?