Blame it on the advent of business casual.

Image consultant Ginger Burr of Boston remembers when there was no confusion about what was appropriate for women to wear at the office. Ladies threw on a navy suit, white blouse, a demure pair of kitten heels, and bravely faced the day. Now the rules are changing - all the time.

"First it was getting more casual, and then there was a backlash, and companies are headed back to more professional business dress," she said. "Now everybody is more confused than ever."

To clear up any sartorial doubts, we queried a handful of experts about appropriate workplace attire. Read on for some tips.