Getting your message out to your audience is really important to advertise a sale. Even if you put out a newspaper ad saying you have a clearance people are still reassured when they see that banner hanging over your store window. We can't emphasize enough get a decent size vinyl banner. You need at least 4-5 foot tall if you expect people to read it from 100 feet away. This clearance sale sign is a great template to use to design your own.