@Phoenix32890,
OOOOH, Phoenix, this is a MATH problem.
Take action.
Go down the long line with your iPhone in hand and add up the number of items in all of the baskets. (This is also the opportune time to expose all of those bastards who are in the LESS than FIFTEEN items Line with SEVENTEEN items!! Beat them about the head and shoulders with a bottle of HEAD AND SHOULDERS.)
ahem.
Then go down the shorter line and make everybody in that line count their items. Say you are with the um, the Department of Homeland Security, make them put the items on the floor if necessary, in order to get an accurate count.
Then, visually assess each cashier for concentration, efficiency and lack of eye contact. (Nothing slows down a line more than some of that Southern "Hi, how y'all doin' today? " crap.)
Pick the line where the cashier has a glassy look, almost meditative, in order to finish your calculation.
Okay. Take the total number of items for both lines and divide by the CASHIER EFFICIENCY FACTOR, (the faster cashier will be more than three times faster, trust me, I've done a lot of this research while rushing to get to the beach or after drinking a six pack of tall boys without stopping for relief.)
Joe(you're welcome)Nation