When you go shopping online, you can find the fabric you're looking for... and a lot more to get you inspired. You can use this method to help you buy enough fabric when you don't have a specific pattern in mind but come across fabric that would make a nice pair of dress pants, for example.
Because fabric comes in a variety of widths and the pattern envelope may only include yardage required for two, you can use this advice to purchase the exact quantity for the fabric's width.