I’m participating in TwoDollarTuesday’s Black Friday sale with some of my apps (MacStories has great coverage of over 200 deals as well) :

Yoink
Simplify and improve drag and drop
40% off – Mac App Store; Website

ScreenFloat
Create floating screenshots to keep references to anything visible on your screen
28% off – Mac App Store; Website

Transloader
start downloads on your Mac remotely from your iPhone or iPad
30% off – Mac App Store; Website

Glimpses
turn your photos and music into stunning still motion videos
40% off – Mac App Store; Website 

I hope you’ve had a great Thanks Giving and are enjoying the Black Friday Sale that’s going on 🙂