It might have taken me forever, but I finally have all 100 tags (I've had those for a while though), 50 Horseshoes, 50 Oysters (that stupid one by the lighthouse next to the boat school was alluding me), and all 50 Snapshots. WHEW!!!! Now I can sort keep going with the game a little bit. I want to get 100% someday before I die, or at least before GTA 4 comes out.
Semper Fi