I've certainly heard 'clean your room,' 'straighten up your room,' and, of course, 'pick up your room' over the years.

'Tidy up' or 'tidy' both sound foreign to my ear, as did 'ready the room.'

'Blitz' sounds modern--and full of energy! But I've never heard it used around here till today.

I like the 'all of it!' because kids are prone to 'halfway do a job,' which, in adult measurement, isn't even halfway.

But what works best for me mentally is to think of 'setting' or 'getting' a room in order, a bigger challenge than most here might imagine.