People that are great at marketing, or doing copywriting, should have no problem transitioning into direct-mail marketing as a hobby or business. On a shoestring budget, there are proven ways to get started. Start humbly, and then move upwards toward your goal. Anyone that does DM must be very proficient at marketing, plus utilizing strategies on a budget. Start with small campaigns, make small changes, which will help you improve as you go along. Just test your marketing ideas, and move up from smaller mailings at some point. Testing is how you learn and make your copy better so larger mailings are more successful.