@miter: Thanks for your comments--you really are catching up on the old (but maybe classic) blog posts! I am glad you like the blog.  Oh and for the record, you're right about the numbers and "dvadeset" vs dvaise.  All of the text books teach the first but the challenge comes in not when you're speaking--Bulgarians will understand either but when as a foreigner you're listening to Bulgarians you need to know both and be most familiar with what people in the shops are saying which by far is the "lazy" version.