Let's start with a little background info;<p>I'm a mid-level Full Stack JavaScript developer based just outside of London. I work full time in the city for a young tech startup, and while I enjoy my job very much and genuinely believe it will take off one day (making the shares I hold worth something), there is still the problem that my salary compensation only just ties me over month to month after paying rent, travel costs and other monthly expenses.<p>Initially I thought about starting a company and building a product in my spare time - but the more I've thought about this option, the more I find myself coming up with ideas too risky (i.e hard to monetise, too big to do alone part time).<p>So with that being said, I'm wondering if the HN community had any suggestions for profitable, while reliable, uses of my spare time to earn some money in the evenings/weekends from my skill set (HTML, CSS/SASS, JavaScript, JQuery, Angular, Node.JS, MongoDB, Redis, MySQL).<p>Looking forward to hearing your suggestions :)