[pqomdv]

I can't wait for junkyard micro-satellites equipped with an ion thruster. They are launched in the hundreds at a time, each locates their specific target, attaches and start a slow descend to burn in the atmosphere. This process is done automatically over a time-frame of months, since ion thrusters work slowly, which is great for automation.

[Gravityloss]

there are even more efficient and cheaper ways for deorbiting than ion engines.

[pqomdv]

Can you elaborate?

[TheLoneWolfling]

Just a long wire would work.