Between August 2006 and August 2007 I moved a total of eight times. Mostly due to the very transitionary point in my life at the time, but also not something I care to repeat. I have two pieces of advice:
1) Enlist your friends to help. The more people the better. Make sure to feed them and have plenty of water or other acceptable beverage available. Yes, you should be the one to pay for this. They're going to be helping you to move and make it as least stressful as possible in as quick a timeframe as possible so you want them to be well fed and well hydrated.
2) Go to a liquor store and ask for as many empty boxes as they are willing to give you. Do this around 4pm. They make for excellent packaging, save you money from having to actually buy boxes, and are easy to dispose of (Recycle!)