For my first A-line skirt I struggled with an invisible zip. It's kinda cool, and I did a not bad job at all - really, it looks just like it's meant to. Except the very top, but that was a learning experience :0)
But - and it's a big 'but' - it was so hard to sew right next to the teeth without actually sewing into them. And yep, I had the correct zipper foot. But then I saw this: zipper tutorial
And it really works, as you can see.
Again, I learnt a couple of things. Like I need the top of the zip to be further down than I had it - sitting 'flush' with the top means it doesn't sit as neatly as it could, and this has confirmed what the problem with the top of the invisible zip but hey, I'm a novice. I'll get it right next time.
And another good thing - Number Guy was having some issues with the hem as he was helping me to mark it. Result? I'm getting my Christmas present early....Any guesses?