I'm a huge fan of the "outfit formula" - an easy way to make sure you always have something to wear that makes you look good and feel comfortable. Here are four of my favourite outfit formulas, suitable for classic / retro dressers
A Simple Formula For Pricing Your Craft Work For Selling. This is a great article. Materials + Labor + Expenses + Profit = wholesale x 2 =retail. The complete toolbox that gives you everything you need to start a profitable online business!
How to Price your Creative Work. Thinking of this more in terms of applying a capitalist frame to your creative work -- not liking the wholesale price and retail price markups, as they encourage capital and slight labor.