We set up a mint plant a few months back, and it’s been fun. Mint is easy to grow – make sure to give the mint its own pot, or else it will spread everywhere. It just needs some sun and water a few times a week, and it will grow large and fast.
It’s better to grow your own so that you pick and use the right amount. Grocery stores typically sell crappy mint or great mint in a big bunch, often too big for only 1 or 2 uses. Usually, you will end up throwing out half of what you buy.
Also, if you grow your own, try to get spearmint of the Kentucky Colonel variety. It has a more robust scent, and we ended up liking it so much that we threw our other spearmint variety out to only grow Kentucky Colonel.