Reading Tefillah Zaka gets me in the right frame of mind (my Hebrew comprehension is pretty good, but if you have an English Machzor, I’d say reading the English is more important than “saying the words”).
Some machzorim have stories on the bottom, “below the line” which I find interesting. I daven in a Gerrer Shtibel so we finish Mussaf around 2PM. Between 2 and the start of mincha (usually 5PM) I relieve my wife from watching the kids so she can daven and try to learn myself. In a way the Gerrer Chassidim are part of “Yeshivas Mordechai Hatzadik” of Yom Kippur because when they close their machzorim, many of them open up a sefer.
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