Next time I fly, I will most likely carry on a backpack and check a suitcase. My plan:

Right after check-in, go to a seat near ticketing, out of view of the TSA checkpoint. I will dump my pockets and cell phones, except for my boarding passes and passport, into the backpack, then secure the backpack with a non-TSA combination padlock. I might even put my shoes in my backpack at ticketing. I don't have a laptop, so that won't be a problem.

No emptying my pockets at the checkpoint. I will place, on the X-ray belt, a locked backpack with all my metal stuff in it, walk through the WTMD, and grab my backpack on the other end. Yes, I know that a determined TSO could break into a backpack quite easily, but they'll go for the lower-hanging fruit, like wallets in bins.

According to the TSA's website, iPads do _not_ have to be removed from bags, and may pass through the X-ray in a bag. If a TSO demands the iPad out, either because they're an idiot, they think it's a laptop/bomb, they want a closer look at it, or they simply want to steal it, what would be the best course of action? Should I bring a printout from the TSA's website?