lol... I *may* check it. If I can figure out how in advance and make it a stress-free experience. If not, I'm going to jam every little thing I own into one bag, or possibly wear all my clothes.
RemieV, Skeptic Scott and Geek Goddess offer much good advice. If you are really an inexperienced traveller (and not just our leg pulling, as my old dutch grandpa would have said), then may I, as another frequent flyer, offer a couple of suggestions:
1. Make sure you get to the departure airport at least two hours prior to your leaving (3 if you're flying international, I do not know where you are from). You can check at least two bags of 50lbs each; I would recommend that you check the bags in at the ticket counter rather than outside at the curb. That way you get your boarding passes and can watch them put the stickers on the bag for your destination.
2. As Scott notes, you can carry a smaller bag (usually less than 30 lbs, but few airlines ever check it) and a hand-held object (purse, bag, etc.) However, they will have to go through security and it can slow you down--one reason to get to the airport early. These days I carry a book and my ticket with me and that is about all.
3. Wear slip-on shoes, because you will be asked to remove them, along with anything metal (belt, coins, watch, etc.) for screening. If they call you out of line for further inspection, don't sweat it, I've been 'reviewed' several times and no problems.
4. If you have to change planes between your starting point and destination, check the airline magazine since they usually have maps of their hub cities and many airlines will announce their connecting gates before the airplane lands. If not, someone from the airline can help you if you are confused. And doublecheck; airlines will change gates on you.
5. Las Vegas is a BIG airport and constantly busy. Follow the signs to baggage claim and look for the carousel with your flight number displayed. Once you have your bags, you have two choices to get to the hotel (1) Cab, which will run you about $15-20, or bus, which is only about $7, but stops at a number of hotels and can take upwards of an hour to get you to your hotel.
6. If you want to, either add your arrival time/airline to the thread I have, or if you want to PM me the schedule I'll offer whatever other advice I can.
Looking forward to meeting you at TAM5; and trust me, you'll be fine.