My car's been stuck the last three days. I'm making a store run tomorrow, what should I get? Salt? Sand? Kitty litter? What else?

Long story short, my apartment parking lot has this shitty process where snow will melt in the day and ice over at night, so it keeps building on itself and if you get stuck it's damn near impossible to get going again. Luckily I haven't had to go anywhere that required a car, but tomorrow I'm going to go get salt and a shovel since my shitty landlord won't. Any other things I should pick up?

That's about a half-inch of ice under the snow. Speaking of which, here's how high the snow is in front of my car. I'm in high-top Nikes and it's taller than they are.