I hope this isn't a duplicate posting; I tried to submit it last week but it doesn't appear to have shown up.

I need a reliable way to uncouple cars on my N scale switching layout. The tracks are close together and the buildings are densely spaced.

I've tried the Rix tool, jeweler's screwdrivers and bamboo skewers, but nothing works as well as it should. Surely, somebody makes a device that will uncouple cars reliably without derailing them or jamming the couplers. 

Suggestions? Please?

-- Tom