Save points in real life would be AWESOME. Got hit by a car? Load and watch out next time. Failed a test? Copy the correct answers, load, and copy away! Or you could just copy off of some brainy kid, and load every time you get caught (And save every time you're not, so you don't have to start over.).
Imagine if EVERYbody had this available. Oh, the paradoxes that would be caused...
If you had this, you wouldn't have to ever worry about, say, getting fired at a job for saying something offensive.
You could even get rich. Just put, say, a penny down somewhere, save, get the penny, load, get the penny... 'Course, this would only work if every time you load, you retain the amount of money you had when you loaded.