When I blogged about business mistakes I’ve made, several of you asked me to list even more. This time I asked a few of my friends to share some business mistakes they’ve made, but I admit I’ve made a few of these mistakes too.

Mistake #1 Not spreading the word about your business

Maybe your business is better than everyone else’s, but it doesn’t matter if no one knows about you. When you develop a new product or service, send an e-release out to your media contacts, spread the news on Twitter and other social networks, and tell everyone you know. Don’t be shy.

Mistake #2 Not seeking advice or guidance from others

Don’t expect to know everything about finances, marketing, and sales. A business consultant, or a volunteer at SCORE (the Service Corp of Retired Executives) can offer business help. Or call someone whose business style you admire and ask them specific questions.

Mistake #3 Not knowing when to cut your losses and move on

It’s too bad that no matter how much you believe in your products or services, that belief doesn’t determine how much success you’ll have. If you’re losing money on a product or service, take a close look at what you can offer instead. It’s tough to let something go, but when you do you make room for more opportunities to grow your business.

Mistake #4 Skimping on the wrong things

A computer, printer, scanner and other office equipment are more important than a top-of-the-line desk and credenza. Keep in mind that most of the time clients will see only what comes out of your office, not what’s in it. Focus first on technology, then go from there. Don’t forget to invest in a reliable, comfortable and adjustable office chair. After you sit in front of your computer day after day, your back will remind you that you need more support.

Mistake #5: Forgetting to listen to your clients’ needs or requests

You may be so closely tied to your business that you overlook new ways to serve your clients, your best resource for new ideas. Before I wrote my first home office book, people often asked me to recommend a book to help them set up their home office. Finally the light bulb went off and I wrote a book. Some people have “aha” moments. Mine was more of a “duh” moment.

There’s nothing wrong with making mistakes, and when you work for yourself you’re going to make plenty. In fact, that’s part of being an entrepreneur. The key is to learn from those mistakes.