"Oh, Thank Heaven!" (written for contest: "Sandwish") (P.o.t.D. 6/6/15)

Sandwiches at the 7-Eleven
Live for only two days, or perhaps three,
Before they're written off to some heaven -
At least, that's what the dumpster divers see...

I could say, "Oh, so much more...", but, "Alas!"
By working there, my words face an impasse.