When your character and PV spawned on the street. (Before you had an apartment and garage.)
When R* gave everyone $500, 000.
Owning a ten car garage before the high end apartment.
Customising your first ever stolen car.
Defining your character's style or personality.
Taking your first Snapmatic selfie,
When randoms buzzed your apartment/garage and took you on a joyride.
Searching the map for sharks in the middle of the road.