I was facing the problem of putting every useless thing in my gym bag and missing the important one. Sometimes it costed me much by making me unable to do quality exercise. So I solved my problem by taking look at every necessary equipment and listing their benefits. That equipment was related to the exercises which I used to perform in my daily routine. There is much content on the internet about the benefits of every equipment used in the gym. Like this one
https://www.aqfsports.com/blogs/news...ng-belts-guide , where I read the benefits of a weight lifting belt. After all that hard work I customized my gym back according to exercise plan, and it helped me in getting rid of all unnecessary equipment in my gym bag.