I am curious as to how most others get their bankroll to Vegas with them. I will never pay the outrageous ATM fees and hate going to the bank while in Vegas, even though my bank has quite a few local branches. I always carry my cash (usually between 4-6k) in a sealed envelope in a storage type clip-board along with my MRB coupon book and whatever other Vegas related paperwork such as room confirmation numbers, coupons, etc. I leave this clip-board in my back pack and always keep a close watch on where it is and the only time I lose sight of it is when it is actually in the scanner. I have never been questioned by TSA about having a large sum of cash. I also wouldn't feel comfortable "holding onto" a large sum of cash going through the X-ray machine essentially flasshing it for anyone to see.