LEARN THAT ANSWER! It's a consultant's stock-and-trade! It makes you sound wise, thoughtful and deep. Follow it with, "Tell me a little more about what you're trying to accomplish." or "Tell me a little more about the problem." If you're going to take on the role of the oracle, act like one. Sometimes, customers may solve their own problem, and you get the credit! Smile.
1) You're going into a "people" business. Remember that. Disney has made billions with an attitude that everyone who comes to their theme park is a "guest." Never an "idiot" or a "pig" - even though many "guests" act that way. Your customers should be your friends - NEVER "idiots" or "jerks." THEY PAY THE BILLS! Remember that! Treat all customers with respect, always, even when you think you're alone in the office. Funny thing, if you don't play nice, word always gets back to them and you lose a client. Nobody wants to be an idiot.
2) Being self employed means you can work "half days" every day! (And you even get to choose which 12-hours-a-day, 7-days-a-week you work!) Don't expect 40-hour weeks for a LONG time. And your next vacation is probably a few years away if you decide to start your own business. There's lots of rewards when you're successful, but the long, hard work comes first.
3) Don't sell yourself short. Find out what others charge for similar services, and price yourself accordingly. Many first-timers don't understand all of the costs contained in "overhead." If you think you're going to net $100K by charging $50/hr, you're in for a rude awakening.
4) KEEP YOUR ACCOUNTING CURRENT - ALWAYS! One big mistake that techies often make is to do the work and ignore the bean-counting. If you're a tech, you probably hate accounting. I did. BIG mistake. Funny thing - when you don't send the bill, you don't get paid. PLAN time every week for accounting, or hire someone dependable (perhaps a close, trustworthy relative) to keep the books up-to date. And stay on top of receivables. Otherwise, you'll be "rich on paper" and BROKE.
5) ANSWER YOUR PHONE! Customers hate voicemail. Talk to them. Here's another "pat" response - "I'm in the middle of something right now; can I call you back at _____?" Book that phone call like any other appointment, AND KEEP IT! Customers understand that consultants have many clients, but they appreciate dependability.
6) It's tough to make money in a hardware business, especially in networking. Everything you're trying to sell is available for less on the internet. The unscrupulous SMB's will take your quote and buy the hardware listed, then get some kid (like their geek nephew) to put it all together. When they call you to straighten it out, it's T&M at rack rate. (If you don't understand "T&M" and "rack rate" - go back to being an employee.)
7) You need quality people to make it a go. They don't come cheap, and there are a lot of worthless ding-a-lings on the market with high price tags. Hire one of them, and you'll be broke in a short time.
When interviewing, ask some tough questions. Forget about their certifications, ask probing technical questions. Find out if they understand networks, or if they just barely "squeaked through" a passing grade on a certification test.
Check their people skills. Ask what they think about working with users who do stupid things to mess up their systems and networks. Listen carefully, and remember #1 above.
Give a typical sample of what you expect to do. Ask them about a solution, what they might do, and why. Emphasis on the "why".
And if YOU don't have a clue about the example problem, consider starting a different business. Otherwise your subordinate will run the place while you take all the risk. And you'll probably end up broke.
When you hire employees, make them account for their time on time sheets or job sheets. Insist on "billable" hours from them - at least 36 in a 40-hour week. Yes, they have overhead too, but keep it under control - usually around 10% or less. If they don't deliver, replace them with someone who does. "Shop time" costs you money, but doesn't pay the bills.
And remember your market potential. An employee needs to create additional billings of 5 to 10 times their salary to be worthwhile. (e.g. $20K employee needs to bill at least $100K/year) If your market growth can't support that, don't hire.
Consulting isn't easy, but it can be a lot of fun. Do what you love, and your work will be enjoyable.