I like the way an invisible zipper looks. It's such an easy professional way to finish a garment.
The tutorial is over 13 minutes in total but I try to cover everything including using a zipper foot, an invisible zipper foot and a regular foot. See Part 1 & Part 2.
As I say in the video I recommend using an invisible zipper foot like this one. If you don't have one you can buy one here. You can sew an invisible zipper without one but it makes it SOOOO much easier and faster.
And if there's a technique that's always stumped you or intimidated you just leave me a comment and I'll try to get a tutorial up.