Coloured envelope, patterned paper or gift boxes - whatever packaging you are using you want to make sure important mail does not get lost in the post. Adding your return address to a mini label and placing on the back of a parcel will help the postal companies to send undelivered mail back to you. However mail dropping through a letterbox could be the first impression a company gets of you so you need to make sure it looks professional. A clear mini label is the best way to achieve this as it blends in to coloured backgrounds for a printed look.