Car, bus, train, boat or... by Lithiate
Car, bus, train, boat or plane. Sacramento is accessable by all forms of transportation. It's a very car friendly city, with pretty good parking. Sacramento is the hub to all five of California's major highways, which means you can get pretty much anywhere from here. The airport is a scant 11 miles from the central city and is generally not overrun with people. The train station is located right outside of Old Sac and is also a little known tourist attraction. The Grayhound bus terminal is located down the street, within walking distance of the train station (if you think 8 blocks is nothing, you're in luck). And Sacramento has always been a river city, so it is also accessable by water.
If you're staying within the central city (Old Sac, Downtown and Midtown) it's pretty easy to get away without having to use a car. Everything is within walking distance. If you are staying outside the central city, a car may come in handy, particularly if you like the freedom of picking up and taking a roadtrip to San Francisco or some other locale. The public transit is decent, but I'm not fond of buses to begin with. Sacramento is also very bike friendly, being a popular place for cyclists to train for races due to it's level terrain.