I like to use an ale pail with a spigot for my secondary. It makes it super easy to test the gravity before actually bottling/kegging/etc.
However, that sort of installation in plastic can open the process up to contamination, more so than other routes. Of course, opening the lid and putting a turkey baster in there isn't so safe either.
What are some solutions for testing gravity in the secondary without opening up the container fully? What are your thoughts on a spigot?