It's the dog days of summer, which means some doggone bad shopping mistakes as we try to dress for comfort.

The other day I spotted a woman whose entire granny panty was visible beneath her unlined white pants.

I cringed. If only she knew you should always buy flesh-colored panties to wear with white.

If only she knew about Commando panties -- which its maker, Her Look Enterprises, bills as the next best thing to going, well, commando.

They have no trim or elastic, are made of nylon and spandex and are supposed to be invisible.