We've gotten a lot of feedback on our recent post, "Death to the Business Plan," in which small business CPA Michael Hanley said business plans are mostly unnecessary: They hold back entrepreneurs, who use the lack of a plan as an excuse to not get their venture going. We've created a place for you to weigh in. Let us know whether you have a business plan for your entrepreneurial venture, and if so whether it's something you actually run your business with. Or does it sit in a file somewhere gathering dust? If you don't have a plan, what impact has that had on your business's success. Share your experience here.