Giving advice

I see what you mean, but...

You've got a point, but...

It's a good idea to...

It's wise to...

I don't think that will work.

You should...

Have you thought of...?

What about...?

How about...?

It's unwise to...

OK, point taken.

You may be right, but...

Have you tried...?

You could always...

Why don't you...?

Yes, you're quite right.

You shouldn't...

I'm not sure about that.

You might want to...

It's important to...

Good idea. I'll try that.

It's important not to...

You ought to...

It's not a good idea to...