21.   The most obvious transition problem involves the handling of the mortgage interest deduction, which millions upon millions of middle-income Americans have come to view as a birthright.

22.   The rest, millions upon millions of shells, mortar rounds, mines and rockets, were buried, dumped at sea or simply abandoned by retreating armies.

23.   The slightest suggestion of tinkering with the federal safety net on which millions upon millions of Americans depend sends voters up the wall, and justifiably, too.

24.   Their hands will be twitching at the thought of millions upon millions of polygons streaming across their television screens.

25.   There are millions upon millions who would like to grab the guy who invented nylon by the lapels and demand to know what the heck he was thinking.

26.   Think of the millions upon millions who have visited since then.

27.   Through the years, millions upon millions of people have traveled from all over the world just to have their breath taken away by the Cleveland skyline.

28.   What exactly were these cocky, cyber-types doing that justified individual net worths of millions upon millions of dollars?

29.   For a classical group to sell millions upon millions of albums would be quite a feat, given that many groups struggle just to sell several thousand copies.

30.   It is a decision that candidates spend millions upon millions to influence during election campaigns.