Take it from me, I learned the hard way. At my local Costco, I find that using the self-checkout lanes to be faster than waiting in line. (It could be false perception since I am busy the entire time and not just standing around waiting my turn, but I don't mind the false perception.)
Prior to 2012, you could buy anything in the self-checkout line, including wine, beer, liquor, etc. BOOZE! You could buy booze in the self-checkout line. But on my last trip to Costco, I was really bummed after scanning a majority of my items when I got to my wine bottles that were carefully placed in the child's seat area of the shopping cart. That's when the self-checkout clerk told me I had to purchase any alcohol from a cashier at a non-self-checkout line. (Disclosure: it was after he said this to me that I read the note that was posted on the self-checkout line.)
Boo! And I was in a hurry to pick up the kids from school so I couldn't wait in another line again. So I had to leave my precious wine at the store.
So this is your warning. I know I will never make that mistake again!
Image from Costco.com
