So I'm having lunch at Mary Brown's (shaddap you, don't judge me) and I notice an ad for the different varieties of their signature Big Mary sandwich with a caption that reads "Collect all two!"

All two? There's a word for that. It's "both". Collect both. I don't know maybe the ad man was getting paid by the word?

(I would have also accepted "Collect them both!" or "Collect the pair!)