I have tried the Gmail account switcher but I don't like not being able to see everything at once (plus it's slow switching between accounts). I also don't like desktop clients because their UX is old and clunky (apart from Sparrow, which I can't use because I'm on Linux) and I don't want to configure my client every time I find myself using a new machine. I'm also getting tired of having multiple browsers open just so that I can keep two accounts open at once.
So my question is--how do you deal with multiple email accounts? Am I missing out on something that others know about? Or is this a common problem?