Comment by koolala

Test: 'There is no greater joy in life than typing a sentence, realising it needs a clarification, a caveat, an addendum, but in the same sentence, not a new one, and, guess what, the comma is right there for you. You want to package things neatly together, and the comma lets you do exactly this. Commas make writing feel like you are assembling lego bricks.'

I like using commas for spacing though em dashes do the same thing and avoid the run-on police?