[xmonad] Multiple monitors of different shapes and sizes?

[Gareth McCaughan]

I wrote:

> How (if at all) does xmonad cope with being run on a system with
> two monitors of different resolutions?
...
> Thanks in advance for any enlightening advice.

And thanks in retrospect to the two Daniels who provided some;
it sounds like the answer is that (1) one can often work in such a way
that workspaces seldom have to change size, and (2) it's not
troublesome when they do anyway. Splendid!

-- 
g