There are many alt key combos to use:
Ctrl Alt arrows moves the window
Ctrl Alt = grows the window (unshifted + key)
Ctrl Alt - shrinks the window
Ctrl Alt PgUp grows the window veritcally
Ctrl Alt PgDn shrinks the window vertically
Ctrl Alt , grows the window hortizontally (unshifted < key)
Ctrl Alt . grows the window hortizontally (unshifted > key)
Ctrl Alt t taller (sames as PgUp)
Ctrl Alt s shorter (same as PgDn)
Ctrl Alt m maximize widow
Ctrl Alt v maximize vertical
Ctrl Alt h maximize hortizontal
I too typically use the Ctrl Alt m combo, using it twice usually cures unruly windows, as maro suggested.