How do I add 2 AFCI circuits to my panel?
I think I just found a good solution!
from: https://www.diychatroom.com/threads/laundry-room-question-ontario-canada.684289/
Someone made the comment:
&quot;My preferred method is come out of a panel KO with a short run of non-flex metallic conduit to a generous 2-gang box (e.g. 120mm if you have them in CA), fit your AFCI-GFCI there&quot;
Genius! I can use regular 15A breakers instead of the non-existent AFCI breakers. Replace the two 20A ones not being used. Use &quot;Blank Face AFCI&quot; devices to add AFCI before heading to basement.  No more need for sub-panel!