You visit some websites quite often but the focus is not put on the input field, so you need to click there each time. Google puts the focus on the input field when you want to do a query. Why can’t other sites do the same?
I got fed up so I wrote a Greasemonkey script that does the autofocus job for me. Thus, after opening such a site, I can type immediately.
You can find the script here: https://github.com/jabbalaci/AutoFocus . The script is very simple and can be customized easily. Currently it contains 2 rules: one for Wikipedia, and one for IMDb.