I'm driving this thread back on topic:
For any type of invisibility, I'd use a veil. As someone said, with two enchanted item slots, you can get a Veil 5 that lasts a scene. When this veil is up, you'll face a block of 2 against all of your actions requiring perception. You'll be able to use this item once per session, with additional uses costing 1 mental stress.
Personally, I find that having two dedicated enchanted items (Offensive, Defensive), and using the rest of my slots for potions is usually the best way to do things. A veil can be a decent defensive enchanted item with utility outside of combat, but I'd want it at more than 5 Shifts if I were playing with a Superb or higher skill cap.