I am at the gate at SFO waiting for our flight to Canada. It is the first time I've been through checkout since the new regulations have gone into effect. Friendly and efficient is how I would evaluate the process.
Here is my entrepreneurial suggestion: Someone needs to open a sock store outside the security checkpoint to catch all the last minute folks who forgot they would ned to remove their shoes.
Entrepreneurship is opportunism coupled with the ability to meet the need.
I dount it would be a long term opportunity though. Folks will eventualy catch on and come prepared. Nothing lasts forever. We must stay ahead of every curve.
Keep thinking.