Do you use contractions in your fiction?
Some people are against them. Others embrace them.
And if you are against them, are there any exceptions? O'clock for instance. Or even better, let's.
While let's is a contraction for let us, it involves a somewhat archaic usage, and the two constructions have diverged. Let's go means a whole different thing than Let us go.
Personally, I don't think that there is a problem with writers using contractions, whether in prose or in dialogue. But then, I don't consider most fiction to be formal writing (and even with formal writing, I believe that contractions are generally okay.)
What do you think?