While it’s great to use Google tools, it’s important to keep in mind that you want to use them, not totally rely on them. I read about a situation where a person’s Google account was disabled, which caused a LOT of trouble for him. I don’t want to be “that guy” and I’m sure neither does anyone else.
After my friend had his hard drive crash, and he lost a lot of important data, I realized I’ve been protecting myself from something like this without even noticing. If my computer crashed right now and I lost everything on my hard drive, I wouldn’t lose anything important. Not because I’m paranoid and have a tape-system backup in my basement, but because I take advantage of free & portable web technologies that simplify my life. If you don’t use them now, check them out. Who knows, you might find something useful.