Please, consult les Gentlemen du déménagement's moving guide

From 1 month to 1 week before
Fill out the valued inventory and send it at least 3 days before
Inventory of your effects
Plants and animals

The day before
Empty and defrost fridge and freezer
Gather all effects you want to keep with you (jewellery for example)
Check your whole apartment

Now, move with total peace of mind, AIM deals with everything!