How to kill time in airports

As based on my experiences today while flying from Brussels to Lisbon and from Lisbon to Madeira:

• Arrange for the taxi to show up before the time you had set up so you can spend the first hour in the airport checking what you forgot. (in my case it was my phone)
• Eat something bad so you can rush to the toilet 3 times in less than an hour.
• Go to the internet to update your blog.
• Look for an English/French translation of local writers. I looked for Portuguese authors in both terminals in Lisbon, books found? none.
• Buy a local magazine and try to do the crosswords.
• Watch people freak out when their flight is cancelled. Take notes.