How to delete all your mail at once on your iPhone 4

It's taken me months to find the solution to this irritating problem. Until now, I've had to delete mail by clicking on 'edit', and then selecting each individual mail. This is great when you have four messages but painful when you have 100. Or 400, as was the case today. So I searched and searched, and finally found the answer. This has made the phone 10x more enjoyable to use.

1. Go into your inbox
2. Press Edit
3. Select one message to delete
4. Press and hold the delete button
5. While you are still holding the delete button, uncheck the email you just selected
6. Release the delete button

Now you will be shown a prompt to either "Delete All" or Cancel.

That's it. It takes one second and you're done. Hallelujah!

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What kind of human beings do this in traffic?

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As you can see, the robot is green for me to go. But I can't, because 10 000 cars (more or less) have blocked the intersection from the other direction. What irritates me is that I stopped at the light change before this, when I could see that I couldn't get across without blocking the way for these people. These very same drivers then proceeded not to give a hoot about exactly that to me.