Here is my security approach. While standing in line remove ALL jewerly and put it in my purse, remove my belt and put it in my carry on. If it is winter, remove coat. MAKE SURE POCKETS ARE EMPTY
At the table in front of the screeners, Remove laptop from case and put it in the little basket. Remove shoes and put them in a basket. Put coat in basket.
Yep, this means I can have up to 5 things going thru. (PC case, Purse, PC, shoes, Coat).
However, I NEVER set off the buzzer!
At the other side I slide my shoes on, stick the PC back in the case and head off. I put my belt and jewerly back on at the gate.