Q: Write out the 26 letters of the alphabet. Take a sequence of seven letters, change one letter in that sequence to a U, and rearrange the result to name something you might find in your refrigerator. Hint: The answer is a two-word phrase.Don't forget to set your clocks back an hour. But don't set your clocks back too far or you won't be able to get the answer at all... say 1963?
Edit: According to a couple sources, plastic milk jugs were introduced in 1964.
A: Take GHIJKLM, swap H for a U, rearrange to get MILK JUG