Simple question for you guys that supplement your saltwater fishing with freshwater trips. I hadn't really considered it before, but do you use any sort of barrel or snap swivel at the end of your line to connect whatever terminal tackle or lure you might be throwing, to prevent line twisting?

I usually just tie direct. I've never had a problem w/ line twist. the only time I use any type of swivel is if I'm toosing worms/powerbait for trout on a sliding sinker rig...and thats just to keep the leader length consistant

Swivels if using spoons or spinners. Use a snap on plugs.

Jigman

very seldom ! I tie direct and just change line more frequently .