Terrific!!!
So this is absolutely no different from any of your other photos.
If you want to save it for web, you flatten it, resize it down to web size (eg 2048px wide for Facebook), sharpen it for web, and save it as a jpeg and upload it.
If you want to print it, you flatten it, use the Crop Tool to crop it to the exact size you want, at the exact resolution your lab requires, then sharpen for print, save it as a jpeg, and upload it to the lab.
In short, you adhere to the trash principle exactly the same as you would for any other photo.