Being well prepared definitely helps with performance at the gym. Spending time doing mobility work to free up the joints, good well fitting clothes that won't split wide open mid-squat, mentally going through what needs to be done, and packing fresh lube and frangas in case I hit it up.. all essential ingredients to success.
One thing I haven't tried is music selection. I am at the mercy of my gym manager who seems rather fond of tunes by taylor swift tart and that adriana grande diva. Would it be more helpful if I brought the ipod and played their music on my dr beats instead??