I try to carry as little as possible WHENEVER I go out...kilted or otherwise. This translates to my sporran (formal or daywear). My wallet is a simple bill-fold with a spot for my credit card and my ID. That fits into both my sporrans and is thin (I moved away from a bulky wallet when I realized I didn't want to carry it in my pocket due to it's awkward size). In addition to my wallet, I will carry my phone and the key to my car. That's it. And if I'm wearing a jacket, my phone ends up in the inside pocket of that...for even greater ease of access.

I have considered a change purse of sorts as well. But to be honest, I would not use it. When I receive change, I just toss the change into the bottom of my sporran and collect it at the end of the day/night. I don't dig down for a penny, dime or quarter.

With that in mind, if I were getting a new formal sporran, I would like to keep my wallet and a spot for my key-essentially the same as what I currently have. I could use a smaller one if necessary since during a formal event I would be wearing a jacket and could use the pockets there for my phone. I could also just as well leave my phone at home or in the car depending upon the event. Nothing is more bothersome than to be trying to enjoy company and socializing at a nice event than having people constantly disengaging form REAL social life to engage in social MEDIA...but that of course, is not germane to the conversation at hand.