Forgetting to light Shabbat candles

Hi,

The Sages were very concerned that Jews should take their Shabbat preparations seriously. As such, they instituted a fine for someone who forgets to light Shabbat candles (as opposed to someone who simply isn't in a position to do it):

One who forgets to light on a given week is supposed to add one more candle each week for the rest of his/her life. In other words, one who used to light two candles would then light three each subsequent week.

A family which cannot afford the extra candles should instead use longer candles, so that they will add to the Mitzvah in that fashion.

(Code of Jewish Law Orach Chaim 263:1; Mishneh Berurah 263:7)

Have a great day,
Mordechai