I love mine!
I don't put makeup in it. I use it to keep all my little junk collected, so when I switch bags, I need only grab my wallet, keys, and my MU...(cell phone in outside pocket...which is why half the time, I forget it.)
In MU, lets see... Reading glasses, sun glasses, comb, coupons, receipts, pen, grocery list, Tylenol, purse hangar (for restaurants etc.), tape measure. Keys, cash and/or credit cards if I use it as a clutch..
Before I got it, I tried using one of those Purse thingies, for all the little junk. It was too structured for Bbags, though, and I ended up with everything dumped into the bag, which led to never wanting to switch bags, because it was just too much trouble.