Buy it once. It's a mantra many in business try and educate their customers on... but what are we like at following our own advice? Waz and Nic have worked out some ways to tell if you could benefit from some focus on this area of your life. You might be surprised to learn a bit about your hosts' behaviours when it comes to underpants, tool purchases and what all this has to do with self-worth, pricing and dealing with staff.

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