if I was flying a normal approach and finding I needed an S turn, I might just be asking myself 'why?' and consider going around and flying a better approach
There's another method which works with at least some Cessnas.
Full flap, just point the nose down. You lose height as fast as you like, and it doesn't speed up enough to bust the flap limiting speed. OK so you might end up a bit fast over the hedge, but it works if you've got 2km of tarmac runway.