Quads and color coordination

When some douchebag leaves all the weights loaded on the leg press but you realize they're the weights you're going to use anyway so it saves you all the effort of loading them.

Also: When you realize you managed to dress so matchy-matchy that your shirt exactly matches your shoes and your shorts exactly match your soles but fortunately there are only two hot guys in the gym who will be scared away by your adorable outfit (and your towering haven't-showered-yet bouffant) instead of the usual six.