This might not qualify as startup for some, but they do for me. All of these are single person efforts with regards to implementation. The ideas themselves were the product of brainstorming between me and my spouse.<p>The first idea I started was travel related. I had a notebook full of ideas on features I would do. :) I jotted down all our discussions, but we were biting off more than we can chew. We felt we could beat an NP hard problem with some heuristics. After an year, we had to concede it was not going to happen and drop it.<p>The second one was more to scratch a personal itch. We wanted to build something that had good infrastructure from the ground up. So, the actual functionality received much less attention. A month or two in, I realized I was going to burn out and put the project on back burner. We revisited it again a few months later and this time, we did things that would not scale. We worked only on the absolute essentials. I am happy to say, the product works for our usecase.<p>The next project was to provide technical infrastructure for a close associate for a business they were working on. Unfortunately the business side of it did not work out. So did not see much out of it. Had quite a bit of learnings from that one.<p>For the next project, I decided we are going to do work on features that are not too ambitious. It was supposed to be a 2 month project, but it went on to become a year and half project. Still this is the first project we followed to completion. For the first time, I worked on the backend, frontend and deployment of a project together. We also did some research prior to development to make sure people needed it. The result is <a href="https://www.niftyword.com" rel="nofollow">https://www.niftyword.com</a> .<p>Now, I am on to the next idea :)<p>The most important learning? Reading a hundred posts on Dos and Don'ts still does not prepare you for ground realities. Not that one should not read such posts, only one should never assume "Thats so obvious. I will not make those mistakes!" , cause when you are in the thick of things, your perspective changes. The sunken cost fallacy is real.