Sam
Honestly? A $12 domain name.Not because the domain itself did anything magical but because buying it made the business real in my head. Before that, it was an idea I was "thinking about." After that, it was a thing that existed. Something shifted psychologically and I actually started moving.I think that's the underrated answer nobody gives: sometimes the best $100 you spend isn't buying a tool, it's buying commitment. Your brain needs a physical artifact to treat something seriously. A domain. A logo. A business card you'll probably never hand to anyone. It sounds irrational but it's just how we're wired.The second best? A $9/month grammar tool that stopped me from sending embarrassing client emails. The ROI on "not looking unprofessional" is genuinely incalculable.But I'd love to hear the other direction too what's the $100 everyone thinks will change their business and never does? Because I've got a list of those too, and it's longer than I'd like to admit.