This largely depends on where you work but it is seldom appropriate to wear shorts and a t-shirt to work. A good rule of thumb – if you would wear it to a nightclub it is not appropriate for work unless you work in a nightclub or bar.
Leave the mini-skirts and plunging necklines at home. You may have great legs and cleavage but the office is not the place to put these on display. If you reveal too much flesh, you are unlikely to be taken seriously and this will damage your career. That is not to say you have to dress like a frump or lose all elements of femininity. You can wear short skirts but keep them knee-length or longer and make sure that you show very little cleavage – A smart pants suit or tailored jacket and skirt or usually safe bets. You can make the suit look more feminine by adding a pretty camisole underneath.
The Clothes Should Fit Avoid wearing anything that is too clingy or anything that gapes. Make sure that there are no visible underwear lines and no visible bra straps. It is best not to display your midriff at all.
Shoes and Stockings
Shoes can be pretty and fashionable but should also be practical. Err on the side of plain, smart shoes when in doubt. Work is not usually the place for your killer heels. Remember that you are going to have to spend the day walking in those shoes. Stockings are no longer an absolute essential. If you decide to wear them, stick to plain, sheer stockings and make sure that there are no ladders or holes in them.
Be Neat and Tidy
Your general appearance should always show some form of polish. Your hair should be neat and clean at all times. The same applies to you nails and clothes. Clothes should be properly ironed and mended if necessary. Make-up should be under-stated and natural. Your overall image should be of a well organised and put together individual who really knows their stuff. Have a look around the office at what others are wearing. If you stick out like a sore thumb, you may be dressing incorrectly.