Valpak of Greater Charleston can open the door for our clients to as many as 150,000 local, qualified households. We specialize in providing mail marketing through the Blue Envelope as well as digital product services and a smartphone app. Shared direct-mail marketing provides maximum exposure at a small percentage of your normal costs. Valpak’s Blue Envelope takes small business advertising to the granular level to greatly increase ROI. Enhance your advertising outreach with a Business Profile Page or a full website linked to valpak.com. Associate with a household name in small business marketing: Valpak of Greater Charleston.