Selling help

Most of feedback here sugest paypal. As far as that $600 tax rule from what I'm hearing it's going affect business type selling. For common working Joe like us , all we might have to do is fill out a form pertaining to this and show a general I paid x for the stuff sold it for y. And if it's a loss your fine. Yea pain but hr block does my taxes cause a rental property so I'll be fine.
But cash Is always ideal. If I'm not shipping I'd meet and take cash. Thanks for your thoughts