Empty Boxes Needed

You can buy them in IKEA or any shop for moving, like Shurgard Self-storage Evere (they also sell some other stuff for moving)

You can get free cardboard boxes in the entrance of any Colruyt supermarket.
It is random used boxes that came from packaging but at least it is free.
You usually take some before or after the grocery shopping if you don't have a bag with you.

Feel free to contact Chris. He has many boxes so he might be able to help you. Tel No. 056 625491

Ask your removal company to give you some. I think first 20 or 30 is free in most. Or Brico or AVA sells for different sizes.