Just another quick timesaver.
Has some kind soul sent you a bunch of artwork files that are on-spec but have annoyingly huge file sizes because they've saved the TIFFs without LZW compression?
(Artists and colourists! Seriously, stop doing this. LZW compression is lossless, meaning that there is zero effect on quality. What it does dramatically effect is the file size:
Obviously, you could just set up an Action and batch process the files, but Photoshop saves you the trouble by providing a ready-built option.
If you look under File -> Scripts you'll find an option called "Image Processor" which, if you set it up like this…
…will handle it for you. It also seems to be much, much faster than running a batch process using Actions.