Merge the public Watchtower and Awake! So the monthly ministry offering would be "The Watchtower - Announcing Jehovah's Kingdom, incorporating AWAKE! magazine". That would result in cutting monthly production by half but they could keep the 'popular' YPA and watching the world articles and alternate with the regular WT life story features.
Eliminate the 'congregation book study' and cut the mid week meeting by 30 mins. Would be good for those with kids for the meeting to finish earlier, but would also reduce the pressure on the society to produce new books if they're not needed for new book studies. Books would only then need to be produced when the old ones are blatently old light.
Outsource printing to cheap private firms.
Make the magazine servant responsible for priniting one study watchtower for each publisher - downloaded from a pdf. - That would save about 10 million mags per month.
Cut 3 day conventions to two days
Close local bethels and have one mega bethel per continent (are they doing this already?)
Phase out and retire missionarys and DO/COs before they complete 30 years full time service (or whatever the cut off is) so the society is not liable for a growing number of old peoples health care.