Regarding Dvorak, I've had good success from only ever typing Dvorak on a split keyboard. To this day, 13 years on, I still can't type it on an ordinary keyboard. When I'm using my laptop away from a desk using its inbuilt keyboard - which I don't do much - I use it with the QWERTY layout.
Most of the times I need to type on somebody else's computer, they've got a non-split keyboard, so no problem there. And if they do have a split keyboard, I can just look at the keys. I can also do that if I need to use Remote Desktop and it pops up with QWERTY (as sometimes happens).
I've certainly found this to work for me, though of course if we were all the same you'd be doing this already and I wouldn't have had to mention it. I suspect it's part of the reason why my QWERTY speed is still OK, on non-split keyboard at least. Most people who see me type on a QWERTY keyboard are very surprised to find out that it's not what I'm used to.
Most of the times I need to type on somebody else's computer, they've got a non-split keyboard, so no problem there. And if they do have a split keyboard, I can just look at the keys. I can also do that if I need to use Remote Desktop and it pops up with QWERTY (as sometimes happens).
I've certainly found this to work for me, though of course if we were all the same you'd be doing this already and I wouldn't have had to mention it. I suspect it's part of the reason why my QWERTY speed is still OK, on non-split keyboard at least. Most people who see me type on a QWERTY keyboard are very surprised to find out that it's not what I'm used to.