Thank you, Nicole and Sandy.
Teri, kitties are very good at amusing themselves. If you're going away for only a few days at a time, you can simply leave lots of food and water and not worry about the kitty. It won't pine away or hold a grudge, the way other pets might. If you go away for more than a couple of days, you'd need someone to come over each day to replenish the food and water supplies -- and to clean the litter box if it's an indoor kitty.