Nespresso is one that immediately comes to mind as it's the most recent I've encountered besides my bank. I went to order some pods for my mum as a gift only to discover that their password restrictions were not only draconian but stupid. The moment a site prohibits punctuation (especially single quotes as they did) is the moment I suspect they're storing passwords in plain text.

It's not directly related, but I'm reminded of this Hall of Shame I stumbled upon from some HN comment a few weeks ago: http://plaintextoffenders.com/