Assume you forgot to secure renting & driving a van available at IKEA when you bought your stuff?!! Now you need to see renting a van from Ferney Voltaire rentals:

Autohire : +334 50 42 88 41

If you are moving from Switzerland to France you may need to check twice if you are not supposed to get information from a swiss rental company in addition to maximum customs allowance refering to the shipment

Hi Temo - sign up for Mobility! They have vans.

A trial is 70CHF for four months. Might even be cheaper than a one-off hire :)

This is your solution. Super nice guy. Good prices. They pick you up from Ikea when you tell them, load the stuff in their truck, drive the things and yourself to your home, unload the stuff and he/they can even assemble for you! I have hired Weli many times and it has always been perfect. 

http://www.glocals.com/guides/biz/Keep-Moving/

Go to Carrefour in Ferney Voltaire, just across the border. for about 50euro a day you can get a van. 

http://www.carrefourlocation.fr/ 

Meyrin border is unmanned so you 'should' go all they way back to the Ferney border to declare all those goods you bought and pay whatever extra duties to French customs, thats what you should do....

Thanks very much guys for the advise - beentrying those numbers but no luck - just french voice messaging :)

But finally visited Carrefour itself and got it organised - thanks again !