What Kind of Complimentary Gear Do You Carry With You?

When away from your desk, what is the gear that you find most essential? Other than the obvious, if you know, kayboard, mouse and the machine that you are using. What other sort of complimentary gear do you carry around? Well, it depends if im for example, sometimes i will just take my laptop or an ipet am to a coffee shop after work with me. If it's g be less than two hours, i'm just going to take the machine. I'm not going to take anything extra with me because t the pay off of taking the extra stuff versus having to carry the extra stuff is not enogh a.