M-! -- new or other binding ??

[William Case]

Hi;

I find myself using the shell-command (M-!) a lot lately and the reach
for all the keys (on my keyboard Alt+Shft+!) is difficult.  Have I
missed a keyboarding trick using one hand or can someone suggest another
binding that wouldn't disturb the default key bindings but would still
be an easier reach?
-- 
Regards Bill