Packing your things can be a real pain in the neck. This is the very reason as to why packing is an arduous process that needs to be worked on step by step, little by little.
Since packing can not be done overnight, it is best to set up a packing room in your house. Months or weeks before moving, it is best to set an area in your house for packing. In the early stages, it can be a sorting area for all your de-cluttering activities. After getting rid of all unwanted clutters, you can then move on to the packing of your things.
If you have a packing room, you can allot 1 or 2 hours per day for 1 month or 2 weeks to go through your stuff. This will help you pack effectively as you get to have ample time in deciding what to bring and what not to bring.