Here’s a method which will help you get out of monotony, make exercising more fun and different and reduce bias in the choice you make when you choose your exercise.
We unconsciously do more of the things we are good at and which we love. This means progress slows down to the point where we make very little progress. When you have a Personal Trainer or a Coach, they will give you exercises you are not good at, but when you have to choose alone we tend to be biased without realizing.
So here’s a way to solve this problem and to also make things more interesting. This is not a method of training to get results though. If your training needs set repetitions and sets, a certain structure, then this is not going to work. But it will make things different.