Though Scubapro Reefhook w/ Stainless Steel Bolt Snap is well made and its compact size would make it easy for storage even in a pocket, I just feel it is a little on the smaller side.
Scubapro Novalight 250 Three-Mode Mini Torch Dive Light
The Scubapro Novalight 250 Three-Mode Mini Torch Dive Light is a very well made dive light and though it does emit a good amount of light for it's small size, it would not be consider as a primary but a good back up.
The Scubapro SMB Orange Nylon 210D - 3.5 ft is sealed at the bottom, so it won't loose air when it is filled and when it is rolled up, this safety device is compact to where it can be stored in a pocket to have on hand on every dive.