With Penney's in particular, you can pretty much just always assume a sale is going on. I go about twice a year, and in the past ~6 years, there's only been one day where the stuff I was buying (dress shirts and slacks, mainly) weren't at least "50% off". If you get unlucky and show up on the one day of the season where stuff is (I think this is how it works) legally required to be at regular price so they can mark it down, just come back the next weekend.