Simply Frugal reader question

Sandy has a question about garburators that she’d love an answer to.  Can you you help her out?

I have a question about garburators. I have a smelly one, and was told to use orange peels or coffee grinds.  Works for a day or so… BUT even if I don’t use the garburator, it still stinks.  I have been hunting online again, and have come across sites saying NOT to use these or egg shells because they will clog pipes.  Have you  come across any permanent solutions? Or even one that lasts more than a day? Thanks!