Balance security and easiness

See jojo's memory and my comment (in Chinese).

CapsLock reminder for password

See caps lock reminder

Someone(geeks?) enter password under cap locks on status, so the reminder may leak some info of their password if someone notice that.

In my opinion, such reminder can be shown when you enter wrong password.

Which button is better?

See How to make a button more clickable (in Chinese) and the comments.

My first choice is ebay. Not like most people, I doesn't choose amazon, because it's too rich, especially the thick border make it like a banner. I choose ebay because it's more similar to the normal, non-styled button. I don't know whether it is due to my technical background.

The cross symbol on the button of target.com is great, the only problem is the cross symbol is isolated with the button, so the button seems like a bookmark, on the contrary, the button of dell which use arrow symbol is more suitable and looks better.

Just like some comments said, except the obvious wrong design (in my opinion, samsung's is the worst), we can not determine which is better without put them it the real pages. And as a vote with too many options, it's unfair because the latter tend to be ignored.

Anyway, it's a wonderful article which show the importance of the details of the UI elements to the customers' feelings.

Today is a good day

That's it.