Where did medieval people get the things they needed?

They either made them, bartered for them, or went to markets held once a week. There was no mass production of anything so if a person needed a pair of shoes they had to be made. The shoes worn in the Middle Ages are called Turnstyle. A piece of leather is turn inside out and then laces are used to put them on the foot. No right or left foot or a hard sole were used.