I'm about to leave a $94k/year corporate job to start a digital marketing agency and I keep going back and forth on whether to invest in tools like Semrush or Ahrefs before I have a single client paying me. My logic is that I need to look credible on discovery calls, but I'm honestly not sure if I'm just rationalizing spending money to feel busy. Did any of you build out a full toolset upfront or did you start with free tiers and upgrade only when a client actually needed something specific? I've been tracking this for about 6 weeks and I still haven't committed either way.