I've been buying their clearcoat packets for about $4 which include 2 wipes and a 3,000 grit Tizact disc.
I see you can buy the individual wipes,
on Amazon for about $2 a pair when you buy 40. That's enough for 20 pairs of headlights.
https://www.amazon.com/3M-Headlight-Clear-Wipes-3M-32516/dp/B0792QDMDB/ref=asc_df_B0792QDMDB/?
Would these have a shelf life? I may only have a half dozen cars a year that need a headlight restoration.

I see you can buy the individual wipes,

on Amazon for about $2 a pair when you buy 40. That's enough for 20 pairs of headlights.
https://www.amazon.com/3M-Headlight-Clear-Wipes-3M-32516/dp/B0792QDMDB/ref=asc_df_B0792QDMDB/?
Would these have a shelf life? I may only have a half dozen cars a year that need a headlight restoration.