Writing to Elder Dallin Carlson

You can go to the DearElder site and write to Elder Dallin Carlson, Philippines Cebu Mission, and it's free, through their pouch service.

You can also write through the pouch system in Salt Lake City.  Use a  single sheet of plain paper, write on one side (nothing can be included inside), fold it 3 times, secure with some tape. Use a regular stamp.
Address:

Elder Dallin Carlson
Philippines Cebu Mission
POB 30150
Salt Lake City, UT 84130