We previously blogged about survey results revealing the most annoying kinds of co-workers. What about other irksome office habits that the rest of us might be committing unknowingly?

A survey of over 2,000 Americans by market researcher Harris Interactive named gossip as the most irritating office pet peeve. Also ranked among the top offenders were messy communal spaces; loud noises or conversations; overwhelming smells; and poor time usage, such as making personal phone calls or surfing the web during work. As far as e-mail habits, respondents also listed unnecessary usage of “reply all” or “blind copy” features as high annoyances.

Yet workers seem to be less confident about voicing some of their grievances in person. While 42 percent of respondents said they would confront a co-worker about noise, only 34 percent would complain about gossip and 25 percent about e-mail frustrations.