I had to change a tire recently after discovering a big nail stuck to the sidewall of my front passenger tire. Jacking up the car and loosening those tight lugs under the hot SoCal sun worked up a good sweat for me. If you'd rather do without the exercise and not having to change your shirt before heading back to the office, here is a handy tool to have: the Superjack Tire Changing Kit. The $149.95 kit comes with a remote-controlled jack that can lift up to 2 tons of vehicle six inches off the ground. And you also get EZ Lug, which has a 32:1 crank ratio to loosen those tight lugs with ease.
Thanks MKS for the tip.