My problem is, I just have so many running tops that I wear too many layers when I go out. It is pretty mild today for example, so I put a short sleeved, a long sleeved top, my zip up long sleeved top too. Then I saw it was raining, so a shower proof jacket on top of that, plus gloves, hat and neck thingie. With all that on, plus a 10k run, it was way too much by about 2 layers. Saw a couple of men wearing shorts and t shirt (short sleeved)!
How do you wear the right amount of clothing - my wardrobe is half full of running clothing!