Best thing since sliced bread.....

[Sharky]

A clingfilm dispenser....

Thought it would be another of those waste your money gizmos, but actually it really works and cuts the film nice n'easy.

 

[si_c]

Had one of those for well over a decade, but I do recall having a similar revelatory experience at the time.

 

[Reynard]

I've been using one of these for years too.

Tip: the cheapest refills I've found are on Amazon - I think it's around a tenner for four.