Bag: While creativity is limited with the actual mats, options abound for the bag you carry it in. (Of course you need a mat bag! Always practice safe yoga, that’s my motto.) Is your mat bag a simple, austere strap? (Do you also tie back your pony tail with a string you bit off the frayed cotton hem of your tank top?) Or do you robe your mat in bright flowers or polka dots? I’ll admit it: mine is the grand dame of mat bags. Fed up with carrying a gym purse, a diaper bag and a yoga mat that unrolls at inconvenient moments, I finally got this baby!