Yeah, but they read all your mail. (I use Gmail too. There's no escaping the mighty "G".)Google very nicely offers 15 Gb free storage.
I was in a thread not too far back about installing Debian on a USB with persistence, and those instructions got into creating a persistent partition larger than 4GB. I followed them along and made it work, but maybe Wizard will find an easier method. I didn't even know it was possible until just lately.