The cles is great as a mini wallet. It fit a lot of my cards and it was the only thing I used when I was working. I didn't like to bring my bags to work in case of my stuff getting stolen so I just put the cles in my pocket.
I use mine to hold my car fob and my drivers license debit card and some cash. Then when I am nannying and feeling super dorky, I clip it onto my belt loop in order to have my hands free to tend to the boys ( 18 Mo and 4 yrs). However, when i have my purse on me, I utilize the d-ring and clip my cles onto that.
My DE cles is attached to my keys with my license and debit card. There are a few bills too. If I have my bag, it's attached to the d-ring. On days like today, when its rainy & nasty, my bag stays put and my cles & iPhone are all I carry.