The advantage of grisms is that the same camera can be used both for imaging (without the grism) and spectroscopy (with the grism) without having to be moved.

Fred gave his younger brother a five minute head start in the Easter egg hunt.

I valiantly resolve not to go to bed at all, but to walk up and down the pier till morning.

As you go through each step during the session, keep a bucket list of items that will need followup action