What are the polite and neutral versions of “cut the bull*’?

Cut to the chase.

Cut (or get or return) to the point (neutral if preceded by "let's" or "we should" instead of "you").

That's very interesting. Now, I was hoping you could help me with [repeat request].

Cut to the chase...

Let's try to focus on "x"...

Let's get to the heart of the matter...

Coming back to the point...

We're off topic, let's refocus...

Let's not fool around...

...and the 'not so polite and not very neutral' version from my years as a craps supervisor in a casino, "Cut the f-ing bullshit already, because if you try to pile it any deeper we're all going to f-ing drown."