What do you need to fold your baby carriage?

How do I fold a baby carriage without breaking it?I was wondering if anyone else had this question, so I sent an email to my friend Ben, who has a great post on his blog about the folding process, which has over 1,600 views.I was really impressed with Ben's post, because he actually did the research before he posted it and did some of the math on it.You can check out the math and learn more about...