The seventh aliyah contains the mitzvah of Yiboom, where, if a married man passes away and has no children, his brother is obligated to marry his widow. If the living brother refuses to marry the widow, he and she go through a Chalitzah ceremony where, in front of the elders of the city she approaches her brother-in-law, takes off his shoe, and spits towards his face. Nowadays, in this situation, a brother-in-law no longer marries the widow, but they still go through the Chalitzah ceremony using a specially made shoe that is kept just for this purpose, even today. So if you know anyone who might, G-d forbid, be in this situation, they should contact an Orthodox rabbi and find out what to do.

In the maftir aliyah is also one of the six remembrances that conclude the morning prayer on page 86 of the siddur Tehillat Hashem. This mitzvah is to remember what Amalak did to us on our way from Egypt, and that we must eventually obliterate the memory of Amalak. Chassidus teaches that we all have a little bit of Amalak within each of us as the source of our evil inclination. Since the word Amalak has the gematria of 240, and the word for "doubt" (safek) also totals 240, we can see that whenever we have a doubt about doing a certain mitzvah, or even if the doubt just dampens our enthusiasm for a mitzvah, that's our internal Amalak doing that to us. And here the Torah is enjoining us to obliterate the Amalak within us.