What is the best/easiest way to juice a watermelon?
The way that i found to juice mine is leave the rind on, mash the melon to bits inside of it, cut a spout in the rind for easy pouring, line my stock pot with chese cloth (although i'm sure a lot of other things would form a great strainer), then just pour the whole thing into the stock pot. I then wrap the cheese cloth up and tie it off with a rubber band. Then you place a plate on top of the cloth and weight it down with a book. Check back every one or two hours to tighten the cheese cloth up and you end up with a lot of juice and none of the nasty bits.  I also tend let the contraption sit in the fridge while it does it's work but it will work just fine on a counter top.  The set up takes me about ten minutes.