I'm a weekly regular as business traveler. I love how easy it is to get through this airport, if It wasn't, I'd probably quit my job. Most of the time I travel is on the west coast so I mostly go Southwest, terminal 4. Terminal 4 is probably the larger of the 3, and can be a bit overwhelming at first, southwest, US Air are the two big airlines that fly out of this terminal. \nI love that SW has outlets now so you can charge your cell phones and knock out some work on your computer \nQuick tip is to pack light, print your boarding pass b4 hand and head straight up to level 3 and go directly to gate. Sunday afternoons/evening and Monday morning are high traffic tine so I avoid flying on those days as well as weekday early am flight before 9am, anything after 9 is a breeze. \nUtilize east economy parking $8 day vs terminal overnight parking @ $25 day (ouch), Buses run every 10 min, I've never had to wait to long. The Gecko bus which is the west side of the lot has a quicker bus route (avoiding the overflow lots) like the Roadrunner. \nAllow for extra time due to the construction going on at airport.