1. Get more boxes than you think you need, you'll find stuff you forgot you had while packing.
Instead of purchasing boxes, try searching around online or in stores for free supplies.
2. Throw away things you don't need anymore while you're packing.
Ask yourself, "when is the last time I wore this stuff? Do these shorts even fit me?" Don't hold on to stuff you don't need.
3. Ask your friends to help you pack (or hire movers) rather than moving things all alone.
4. Keep things together, don't just go throwing things in different boxes, it'll make unpacking much easier.
5. Label your boxes
This will help you when you're looking for something specific, so you wont be tearing through every box you packed.
6. Clean your new place first, before unpacking everything.
It's harder to clean when you've got all of your stuff out. Do a deep clean of your new place!