Wow - I just found one of the most gratifying software plugins I’ve ever used. Like many photographers, I’ve been struggling with excessive noise in a lot of my shots due to high ISO or compensation for poor exposures. On Scott Kelby’s recommendation I decided to give Photoshop plugin Noiseware Professional a try. Oh - my - God. I can’t believe how good this plugin is. I don’t know why we don’t ship something this good in Photoshop. I mean, wow.
So if you’re like me and you have a lot of low-light shots that just look super-noisy, do yourself a favor and buy this plugin (they also offer a standalone version).

Sidenote: Please don’t leave a bunch of angry comments telling me that I’ve carelessly overlooked some other plugin that you feel is the “best Photoshop plugin ever” - this is my opinion. If you do have other friendly recommendations, please comment away.