Annoying, but the 'auto-spelling correct' gets it right more often than it gets it wrong, and it's only one click to say "no, I knew exactly what I was typing"...

I'm obviously a boringly normal person, then, since it almost always correctly spots and fixes my numerous typos! Just another reason why I lurve google. -Neuromancer

That is quite useful. Where I often find I am struggling is when I am searching for someting that has multiple genuine meanings, and the one you want is the obscure one. Then you have to try to guess what other terms might appear next to it, which can be quite fiddly.

The image search is the worst, because with that, you are not only trying to guess what the obscure meaning of the word is, and what other obscure words might appear next to it, but also what words other people with pictures of the thing you want might use to describe it, which can seem to require a great deal of telepathy. :-/