"Tip of the Week" - 100 Calculators for all Aspects of Your Business Life

I found this amazing list from Bootstrappers which has 100 calculators for every aspect of your life to help with Business Operations, Loans, Debt Management, Taxes, Investments, Personnel, Personal Finance and Miscellaneous.

You will want to bookmark this post and keep this tool.  It is definitely worthwhile for the solo practitioner both personally and professionally.