I would rather my purchases of tampons, a bottle of wine, and a tub of ben & jerrys were not on display. With that little selection I might as well have done the school pick up (went straight from shop!) wearing a badge that said 'Hello, I'm on my period!'
And people love to look at your shopping. A couple of weeks ago I swear I saw the man behind me smirk in Tesco, when my entire shopping consisted of a box of condoms, whipped cream and another bottle of wine. The condoms, yeah, fair enough. The whipped cream was because I'd promised DD hot chocolate with all the fancy stuff, and the bottle of wine was a gift for MIL. Still, bet the man behind me thought I was a right wild one 
So, are supermarkets using transparent bags as a way to shame us into buying the long life ones?! 
Also, what funny checkout combinations have you seen/bought?