We all need to relax when we are not at work. if we do not then we can end up getting extremely stressed and not able to work at all. however, there are many people who find time to make money in their spare time. If it can be made from doing something that you really enjoy then it will feel more like a hobby. You may even be able to make money out of a hobby you already have.
There are people that feel that it is bad that I am always thinking of ways to make money. however, I feel that it is important to have a good income so that I can do things that I enjoy. I would not be able to have holidays, pay off my mortgage earlier, plan a good retirement or enjoy life as much if I did not have so much money. We live in a society where money is necessary and so why not try to find ways of having more. They might say that money doesn't buy happiness and I do try to make the most of everything, whether it costs money or not, but it certainly makes life less stressful if there is not the worry of money all of the time.