It is possible to teleport to a Super Secret Room with no doors, resulting in the player being stuck.
Strategies
Possible uses include:
Teleporting out of dangerous situations.
Avoiding spiked door damage going out of a Curse Room.
Teleporting into Challenge Rooms if you don't meet the health requirements to get in.
Escaping from Challenge Rooms or Boss Rush after picking up a chest or collectible, avoiding the fight.
Escaping from Mom's boss room, due to there being no exit after defeating her.
Interactions
Book of Virtues: Spawns blue wisps in the middle ring. Wisps' tears have a 10% chance of teleporting non-boss enemies to a random location in the current room on hit. Wisps also temporarily vanish every 5 seconds, preventing them from blocking shots or taking/dealing damage.
It is also a small nod to Dr. Fetus' many remotes in Super Meat Boy.
The V1.06.J787 patch notes states the item 'allows the player to influence the teleport direction (using the direction Isaac is moving upon activating the item)'. This effect was never planned to be added into the game, and was put in the changelog because of a misunderstanding.
Secret Room or 
Super Secret Room.
I AM ERROR room.
Crawl Space for the floor or the 
Black Market.
It is possible to teleport to a 
Curse Room.
Challenge Rooms if you don't meet the health requirements to get in.
Boss Rush after picking up a chest or collectible, avoiding the fight.
Mom's boss room, due to there being no exit after defeating her.
Book of Virtues: Spawns blue wisps in the middle ring. Wisps' tears have a 10% chance of teleporting non-boss enemies to a random location in the current room on hit. Wisps also temporarily vanish every 5 seconds, preventing them from blocking shots or taking/dealing damage.
Car Battery: No effect.
Doctor's Remote and 
Teleport 2.0, but with a different color.
The Binding of Isaac: Rebirth
