Tip: Photoshop: Fine Tuning your Layer Vector Mask

I've been working on some amazing new ideas. Still hush hush. I did want to share with you something that I learned. When creating a mockup in Photoshop you will inevitably have to adjust and fine tune your mask layer. I clicked here and there and finally found it. Click on the layer mask thumbnail twice, and then SELECT AND MASK. This opens another window where you can begin adjust. For me, using the Brush Tool from the left hand palette was enough. Now you can begin adding to the selection. However, if you want to remove from the selection, click on the option key as you adjust. A tiny, I mean miniscule, minus symbol pops up. Unlike when working in Quick Mask Mode where you toggle back and forth with the foreground and background (X key). Also, adjust the transparency as you see fit. If you'd like to see more of the piece and less of the mask, lessen the transparency. Once your done, click OK and you are set.  Enjoy!