best way to send a CRT monitor?

[Spyhop]

By best I mean cheapest! There is absolutely no rush.

I have a 17" CRT monitor that I want to get to my folk's home up north. I think it's about 20KG all in and I still have the original box (you can imagine the dimensions).

Thanks

 

[Spyhop]

Thanks for all the suggestions - got a few fair to look in to!

The thing is ******* me off though. I have no use for it, it takes up space, no one wants to buy it and I have no means of transporting it. Yet it's still too good to throw out or give away for free (Mitsubishi 750SB). CRTs really are a dead duck!