People plan the phone, the laptop, and the headphones. They forget the dull objects that connect them. A frayed cable, a bank that cannot push enough power, or a plug that only fits one of your devices will ruin a day faster than a missing feature on a flagship. The small kit is worth choosing with the same seriousness as the screen.
What a power bank is actually for
Capacity numbers are easy to overread. A large figure on the box does not all become energy in your phone. Some is lost as heat, and some is held back so the bank itself can run. Think in charges you recognise. A compact bank that reliably tops up a phone twice is more honest than a brick you leave at home because it is heavy. If you also carry a laptop, you need a bank that speaks the higher power the laptop expects, not only a polite trickle.
Ports matter more than colour. One strong USB-C port that can both charge the bank and charge your devices will simplify the pouch. A built-in cable is useful until it frays, and then the whole bank feels broken. A separate, replaceable cable is the more adult design. Look at the airline and venue rules that apply to the trips you take, and do not buy a bank so large that you are forever negotiating with a gate agent. Smaller and present beats enormous and left in a drawer.
Cables are not all the same
A cable can fit in the port and still be the wrong cable. Some only carry a trickle of power. Some carry data. Some are long enough to reach a sofa and some are a stubborn twelve centimetres. Buy the length you need for the place you sit, then buy a short one for the bag. Replace a cable when the sheath splits. Do not wait for the exposed wire to become a story.
Label them if you own more than three. A dot of tape, a colour, a note. Future you will not remember which cable talks to the camera. Coil them loosely. A hard wrap around the fingers puts a kink where the connector meets the sheath, and that is exactly where cables die.
A pouch, not a pile
Keep one small pouch: bank, short cable, long cable, and the plug that fits the wall where you actually are. Check it when you check your keys. Charge the bank when you charge the laptop, not on the morning you need it. The Field Charge in the shop is the size we recommend for a phone and a pair of earbuds without turning your bag into a toolbox. Pair it with a cable you are willing to replace, and the rest of your electronics get to be the interesting part again.