an easy to remember phone number is way better than an easy to remember name, (although, with internet, names are catching up)
some general advise
1. start slow, do this at night, on weekends, days off, don't jump into it, step into it. the time to quit your other job is when you are constantly turning away business because you dont have time.
2. involve close family in your business, you will need all the support you can get,
3. micro manage every aspect of you business at first, do not use payroll agencies, or billing services until you know how everything works inside and out
4. partnerships are very hard, and often turn ugly
5. be prepared to work long hours, with the tank cleaning think I would bet most offices would rather you come in at night with a cleaning crew, fill a nitch
6. it often takes over 5 years for small businesses to make any money
I am the partial owner of one small business, and the sole owner of another.
this advise is worth what you paid for it