I think that beer bottle/straw-thing works for me.
I've been battling with the second octave (E5 --->)
and today I was able to get the E5 and F5 with the "straw".
This is what I needed to motivate me to carry on.
And now I know why the first octave was so easy for me...
(read my first post and my signature...I'm very impatient when it comes to learning something...Ijust want to play)
I'm afraid of the second octave.
(Let's not even talk about the third...)