Google's latest "feature" is nothing short of annoying. I fell in love with Google Search for the clean, textual layout of the search results. The colored text I can deal with, but not visual buttons next to every single result! To make matters worse, Google doesn't provide a way to disable this feature either, so your only two options are logging out of your Google account or installing a Greasemonkey extension.
Oh, and my rant doesn't end there. Another feature that was recently added, Google Suggest, has been more trouble than it has help. I can't even count how many times I've went to Google something only to have a big list of suggestions instantly erase the original search query from my head. There are hacky ways to disable that too, but come on Google! There should be options to disable this stuff!