On the Yoga Forum for more yoga chat with likeminded people. It's a great little supportive corner of the internet, and I'd love to chat with you there! 

Personally, I find improving flexibility one of the toughest things to do because it takes a lot of time and patience - two things that the majority of us don't have (#amiright?!). I really haven't found any way around that (sorry!), but using props like yoga blocks is definitely a way to work on your flexibility if you feel like you've hit a plateau.