The Big Picture: an initial assessment looking at all areas (personal/household costs revealing Target Take-Home, estimated business costs showing Target Revenue & Cost areas to work on, estimated tax showing Set Aside Targets, etc.)
The Price Is Right (Cost-Plus + Competitor Evaluation + Value-Based)
Plan for the Future (Pensions, Savings, & Investments)
TaxEasy (Self-Assessment Tax Returns)

As self-employment nears 5m, support for the little guys can be easy as 123...

An article in DIY Investor Magazine by Laurence Taylor, Creator of BDI