Is there an iTunes add-on or a work-around or some method for organizing sets of apps and/or media to synch with a particular iOS device? I use an iPhone and on some trips I go away from internet and cell access so I need to load maps and other stuff that takes up a lot of space. But when I'm home I don't need any of that, and could use the space for other stuff. So every time I leave I have to shuffle around the apps I've installed, and sometimes other stuff as well. One size does not fit all. Is there some way to save a set of apps and media so I didn't have to hunt down all the stuff manually? like a sort of plugin or something for iTunes? My understanding is that an iOS device is more or less keyed to one library; I've had big hassles in the past with trying to use two, but that was on different machines. I'm not that keen to experiment, since I get the "erase and restore" message. It shouldn't be a DRM issue since it's just my stuff and my AppleID, but still.... I would think others might need the same thing.