Small tools and web apps that provide a quick solution to very niche problems. Mostly aimed at business. Primarily based on obscure forms that occasionally need

Small tools and web apps that provide a quick solution to very niche problems. Mostly aimed at business. Primarily based on obscure forms that occasionally need to be filled out for shipping. If I find myself googling something but don't find a great fit for what I need or many relevant hits, I look into building it. Or if I find myself manually gathering and formatting data or info, I see if I can automate it. Some end up being useful/found by others. Some don't. I currently see about $300/mo through adsense. A few of these things could turn into something more if I was ever motivated to do so, but would no longer be passive. Some probably not. Most interesting is seeing what takes off and what doesn't and trying to apply that to duplicate the success. I've tried a couple affiliate projects, but have not found a great fit yet.