View the list of Sample Business Letters Promotional Letter, Interior Design Disclaimer: Be aware that some of these sample letters have legal, financial, or other implications. If you are not sure about the use of any letter, consult with an appropriate professional first. Promotional Letter, Interior Design Dear As a new customer of (firm) , we thought you might be interested in knowing that our Custom Interior Shop offers you free interior design consultation along with the finest selection of fabrics and wallpaper designs to choose from. Our experienced designers will be happy to meet with you either in your home or at our store to discuss your interior decorating needs. In addition to the merchandise we offer in our store, we have catalogs from the major manufacturers of furniture and accessories throughout the country from which you can make your selections. Please feel free to either drop in or make an appointment with one of our interior designers at anytime. Thank you for being a customer of (name of firm)