I'm constantly behind (and sometimes WAY behind - like 6 months behind) with my personal email. I'm pretty good at keeping my work email under control (my inbox is frequently empty) using a GTD-like methodology, but I've found that this doesn't work well for me with my personal email.
I am very easily distracted so I using the leechblock extension for Firefox, I have all distracting sites blocked at all times except for the first 8 minutes of each hour. This gives me a pomodoro-like break each hour (I tried 5 minutes every half-hour but found I prefer focusing on work for a longer period of time, and then having more time to browse the distracting sites).
However, these 8 minutes aren't really enough time do anything useful with my inbox. What I end up doing when the timer goes off is: go to the bathroom, grab a drink, check if any new emails came in, and check a few other sites (stocks, sometimes facebook, etc.).
If there's an email that's needs a reply fairly urgently, I'll respond to that and use up most of the 8 minutes, but this is maybe one out of every 20 or 30 emails.
After work, I'm either getting home late (so I'm tired and pretty much go straight to bed), or with my girlfriend (so computer time isn't really an option). And even if I did have the free time at home, the last thing I want to do after sitting in front of a computer at work for 10 hours is to do it again at home.
So really, the only time I get to these emails is if I can make my way to a coffee shop on the weekend (maybe once every couple weeks), and even then I can spend a couple hours max and I only make it through half of the emails at most.
I'm looking for suggestions of any kind (e.g. psychological or pragmatic), and am curious about how others manage their personal email. I think the distinction between personal and professional is important, because if I spent as much time on my personal email at work as I do my work email, I'd probably be fired!