I was reviewing stats for a busy AdWords account and to my delight I spotted a search term that got two one-cent clicks yesterday.
It was a two-word phrase, modified broad match, quality score 10, uncommon but highly targeted. The stats show six impressions yesterday, and two clicks at 1¢ each.
The default bid for the ad group was 33¢ and our ad was the only one showing for the search, at least as seen from my location.
I wish I could get some of the busier searches to perform that well!