[jemmyw]

I gave up flossing. It has made no difference as far as I can tell, and my dentist hasn't noticed. As far as I know, research has been ambiguous on the benefits and it's been dropped as a recommendation by some organisations because of the lack of evidence.

The change that did make a difference to me, and is supported by evidence: switch to an electric toothbrush.

[jrib]

Might depend on what you eat but when I first started flossing, the gunk that I saw being removed was enough to convince me that flossing was a good idea.

It may depend a lot on the tightness between your teeth, for example, how beneficial it is?

[shinycode]

It surely depends on how your teeth are aligned. Without flossing if I eat red meat for example every single time some get stuck and brushing never gets it out. My wife with the same meal never ever had this problem (or did any flossing btw)