I run a small hosted SaaS by myself. It's about five months old. These are the ones I learned from the actual work. Timing beats hard work. Keep costs low enough that you're still here when it works. One important thing per day, finished. Not started. AI can go wrong anywhere, so your job is direction. New visitors, conversion, retention. All three, every week. Early on, SEO is the number one channel. Slow pages kill you quietly. A low price beats free. A/B...