thanks A, nice Kissel post.
He says you don't necessarily need upper/ lower/ symbols. He says if you just do a really long password with all lower case it could be great. So I thought, cool I'll test that.

So I googled for two sites.

This one says, Ijoggedtothestore is a great password, would take 8 million years for a computer to crack.
http://howsecureismypassword.net/

However,
this site does not say how long it would take a computer to crack (which is a good measure as that's how hackers crack passwords, right? ), but it says it's totally weak because it has all lowercase!
http://www.passwordmeter.com/