Your business might be headed for failure if you haven't taken the time to develop your sales skills, writes Vitra Singh, author of "Living Life For Yourself, Not Your Job." Singh contends that sales should be a priority. "Talk to your sales friends, read tips online, practice on your mom" she writes. "Your business will likely not succeed if no one knows about it." Also, be sure to develop a business plan and ask questions to expand your knowledge, she recommends.