Let's suppose it's 6.30PM, you've got a scene to finish before the morning, but you would really like to spend an hour with the kids or significant other while they're still awake!
You run Zip-It and copy the resulting file to your trusty thumb drive. It's 6.35PM and you're out the door...
Back home, you get to do "real life" for a couple of hours, then you unzip the file you brought home from work.
11.30PM and you've tweaked one of the textures, added detail to a model and finished the shot. You've done a test render and you're ready to hit the sack. Just run Zip-It again, and you'll take the file back to work in the morning. Right?
Well, you could do that, but then you'd have to figure out which files have changed and copy only those back to the content drive at work.
Alternatively, you could use Zip-It's Quick-Zip function. Bring up the Zip-It Options Panel and set Quick-Zip to choose only the files you changed in the last three hours...
Run Quick-Zip and before you know it...
Notice that Quick-Zip has SKIPPED most of the files and has zipped only the three files you modified.