They're called tire "chocks" actually

and surprisingly hard to find unless you buy one of those jack kits that come with a couple, which I'd recommend. I just use some chunks of 2x4.
Speaking about "chalk" though, I've recently started to number my tires with a tire grease pen to keep track of which tire is where for rotations.
In addition to what Morty recommended above, I would suggest an X shaped tire iron. You're not supposed to use the torque wrench for loosening, and the wrench that comes with the car isn't enough sometimes.
If you choose to take them to a shop to install them, choose a place that hand-tightens the nuts. A place like Canadian Tire will usually just zip them on and it will be too tight.