Alex recently talked about the lack of bag space for the hybrid class. This is quite true for them, as they have a hard time with the near infinite amount of bag space that is demanded of them. However looking at the non-hybrid classes, in particular a warrior, it can be seen that they too have their own issue of sorts. For an end game tank, it becomes less of an issue of actual bag space, and more of an issue of the limitless combinations of gear.
Most tanks swear by outfitter – a tool that allows you to quickly change around pre-saved outfits. For instance, say I'm going to be tanking the nature phase of Hydross. Before even setting foot in SSC, I would have spent an hour or so making sure I had all the necessary gear, stats, and configurations that Hydross requires. A good part of this time would be spent getting all those gearing changes into an easy to use outfitter profile – so I would just have to click one button to wear the gear.
Of course, that's resistant gear and it's expected that there'll have to be a bunch of switching of it. However, the gear switching doesn't end there.