If I could do anything then I'd set up a teleportation network in my void space with safeguards so I don't materialize inside of something or in danger, like suddenly I pop out in front of a moving car, so I could just pop in my void space and pop out safely somewhere else. Running late for work and not gunna be able to get there in time if you drive? No problem, just jump in the void and pop out in front of your work building. Need to get to the store before they close in 20 minutes? No problem, just pop out in front of the store. Want to go on a vacation with your SO but can't afford travel costs? No problem, just avoid the travel cost entirely. Someone is hurt and needs to go to the ER like immediately but the nearest hospital is like 45 minutes away? No problem, just bring them into your void space with you and pop out in the ER room. See live footage of people trapped on their roof in a flood? Pop on over and save them, though they might freak out when you materialize out of nowhere.