I see what you mean, but...
How about...?
It's a good idea to...
It's unwise to...
What about...?
OK, point taken.
You may be right, but...
You ought to...
Have you tried...?
You might want to...
Have you thought of...?
You should...
It's important not to...
Why don't you...?
You shouldn't...
I don't think that will work.
I'm not sure about that.
It's important to...
Good idea. I'll try that.
It's not a good idea to...
You've got a point, but...
You could always...
It's wise to...
Yes, you're quite right.