https://logmyhours.com Time tracking, invoicing, project & employee management. Launched it in Aug 2015, and launched the app last Aug. Hoping to go full time in the next 12 months if things work out.
Basically I reach out to every new user to see if LMH is working out for them, and if there's anything missing or any challenges they might have encountered. I had one user with a few employees that was looking to switch over from one of our big competitors, and he really needed timesheet tags and timesheet approval & locking. I managed to build most of the timesheet tagging while in China on holidays :) and had the locking/approval system in later that week.
I have a few more exciting things I want to do once most of the main features have been built and I'm working full time on this. Currently doing around 20 hours a week.