Keep it simple - people can grab a simple idea and remember it. Too much information confuses.
Don't forget the important stuff, such as how/where to contact you (a common mistake).
Design companies DO NOT have better ideas than anyone else - just look at some of the crud in telly adverts. I often suspect they just recycle the ideas they had when they were at college/design school - if it has worked before, it will work again.
If you can, design a memorable logo for the business venture. Once again, a distinctive logo will prompt a potential customer's memory.
The Acme Company gets to the front of a phone book, but you might get sued by roadrunner.
Quack!
GtD.