No Free Plannofreeplan.com
Why you should probably not offer a free plan.
Don't Just Roll The Diceneildavidson.com/downloads/dont-just-roll-the-dice-2.0.0.pdf
A usefully short guide to software pricing
The trick that makes you overspend - BBC Worklifebbc.com/worklife/article/20190801-the-trick-that-makes-you-overspend
Employing the “decoy effect” could bend others to your will, improve your finances, and more.