2. Denim
If you work in finance, law, or any other type of formal corporate environment, you can forget about denim – it’s never going to happen.
Less traditional offices (including creative environments) usually have a casual dress policy on either a given day of the week, or more and more frequently, all the time. While denim is almost always allowed in this environment, it is important to choose your denim carefully.
Leave your distressed, acid-washed, and tie-dyed denim at home and opt for clean, solid dark washes. Avoid anything too tight or with too low a waistband; nobody wants or needs to see what you have on underneath your jeans.