When I got my CHL, I copied a friend's idea and got a small folding ID holder with a keyring from Walmart. It has one window pocket on the outside, & one on the inside when you open it up, and it's not much bigger than a business card holder. IIRC it cost approx. $5.00. The DL goes in the outside window pocket. The CHL and a current copy of the auto insurance are tucked into the inside window pocket. The whole thing goes into a dedicated, small
outside pocket on my purse, so it's easily accessible without looking for it or having to reach into a deeper pocket where my hand - and the pocket contents - can't be seen.
I can show just my DL (for checkwriting and such) or open the ID holder up to hand the entire thing to an officer if necessary.
If my pistol's in my purse (instead of on me) it's in a totally different pocket, by itself, on the
inside of the purse.
(Something else I've learned: sometimes, a Walmart $20 special makes a better carry purse than a custom, leather "designed-for-carry" $150 purse!
)