I noticed mention of the Orton Effect and looked it up. Pretty cool. It's a simple way to make things look dreamy in post.

Here are some current and past PR threads on it to save you the PR search:

Flowers

Orton Effect



"In camera" Orton Imagery

Orton Imagery Daffodils

Cabin in Winter

In a nut shell you need graphic software that uses layers (as far as I know).

Make a second layer of your image.

Apply a guassian blur to the top layer and make the radius extreme between 10-15 pixels.

Apply the blending option 'multiply' or 'screen' to that blurred layer.

You should end up with something interesting.

So far most examples I've seen are 'nature' by topic but I think it makes portraits interesting as well.

Why not share your samples here