All tags, jumps, oysters and horseshoes are done, taken. BMX and NRG Challenges are done too.
No missions done (its a starter save m8)
Good cars in every garage (There is a very very good vehicle in the locked garage in San Fierro. The one owned by Cesar)
All properties bought (locked aren't)
No schools done (you unlock other island later in the game so they can't be done)
No copyright (just give credit)

Credits:
MrGoldDoge