As a long-term freelancer, I've had one big problem with the tried-and-tested freelancing model. You know, the one in which you bid for a project or assignment, and wait until someone sees you as a good fit and then awards you the project. This model is only good for temporary or short-term freelance work; something you might take up to earn something on the side, or while in between jobs. The reason is that because of this model, you end up spending more time bidding for projects and waiting to be selected, instead of actually working. An ideal freelancing platform would let you work without bidding, and then sell your work multiple times and pay you a fixed percentage of profit. I know there are some (very few) freelancing platforms that actually do that, but in my opinion the one that does this the best is schoolsolver.com. If you are a freelancer, you can join School solver as a tutor, choose your favorite subject, answer students' questions on that subject, and get paid...
The only way to solve a problem is to cut off external input and contemplate, but the only way to apply the result of contemplation is to become receptive. Paradox!