People in a modern setting have started gaining mysterious powers (you know how this goes), but they're pretty rare and they all have significant limitations. Our protagonist has the particularly rare ability to teleport (he's the only one with such a power as far as we're aware), but the downside is that he's limited to teleporting what he thinks of as his body. This means no other people, no tools and no clothing.
He can teleport to anywhere that he can picture well (having been there) or to anywhere with sufficiently detailed photographs (Google Street View suffices.) Standard hand-waving applies to prevent intersecting solid objects or other people upon arrival, though he doesn't have any remote viewing, so he isn't sure what he'll be jumping into. It requires a bit of concentration and time (maybe a few minutes), so it's not something he can use to jump around the room in a fight.
In other settings of this type, teleportation is often used productively to transport others, but that's not an option here. Given the limitations and how vulnerable his power leaves him upon arrival, how can he leverage this ability to good advantage?