Advice to a Friend whose Mother Talks Loudly on the Phone
Cheapest option
is under headphones
wear ear plugs
(some people
use blu-tack)
or
you can always
learn sign language
and then poke out
your ear drums
with pencils.
I considered that once.
Most expensive option
is to move out.
Accidental poetry found and edited
by 
(the ol' #editedbyclay)
Thanks also to the 
Selfie with my cat, photo credit: 
Please do not take any of my advice.