Choosing a Pocket Multi-tool
Personally I think pocket multi-tools (as a superset of more well-known Swiss Army knives) are very useful. You never know when during the course of day you’ll need to cut a package or envelope open, snip a loose thread, open a bottle or unscrew/screw down something. It’s bad when you don’t have proper tools nearby (but even when you do, it’s often a hassle to fetch/put them back). That’s why it’s extremely good to always have multi-tool in your pocket, especially when it’s small and light enough to be unnoticeable. Obviously compactness comes at the price of less features, it’s always a compromise.