The Michigan Geocaching Organization (MIGO) has a bingo contest going. You can either find or hide geocaches that start with the letters they assign you. I needed a multi that started with A.
You will find a sign at the posted coordinates. Subtract from the posted coordinates to get the final coordinates.
North - subtract 0.0BC
West - subtract 0.0YZ
B = Number of times the word HOUSE appears on the sign
C = Last digit of the day in June mentioned on the sign
Y = First number on the sign
Z = Number of letters in the 1st acronym