I found it is also pretty useful for getting big batches of soup into those screw top plastic containers as well as getting beads back into a jar (but that is a whole other story)
My top tip for jam making is to cover the worktop with clingfilm/foodwrap then put your jars on top and fill them. At the end, you just peel up the whole sticky mess and put it in the bin.
Happy preserving! Jo xx