The first book in this series equips you with a base loadout of useful tools you can carry 24/7. This one is all about flexibility. We may call it "everyday" carry... but every day is not the same! Why carry the same gear, rain or shine, in all 4 seasons? You're carrying ballast and missing things you might need. If you're on a specific task, or riding your bike, take appropriate extra tools. You only need the Bat Shark Repellant if you're flying the Batcopter over the sea. That dates me - 1963! But, dated Adam West references aside, you get where I'm coming from? What if you could change parts of your loadout for each journey... You need a system like the pods for Thunderbird 2! Quickly identify and remove items you don't need, then replace them with things which suit your next mission. Just like book one, nothing in here costs a fortune to do. It takes a bit of thought, some time and a little patience.