Pack what helps. Leave what does not.

Build the list from the trip, not from the gear

Most packing lists fail for the same reason: they were written for someone else's trip. A list that works starts with three answers — how many nights you are away, what the night-time low will be rather than the daytime high, and what you could buy or borrow at the destination if you got it wrong. Everything else follows from those. A two-night trip in mild weather with a shop nearby needs a fraction of what the same two nights need when the nearest town is an hour back down the road.

Wear it, do not pack it

The heaviest and bulkiest items — boots, an insulating layer, a shell — should be on your body or in easy reach when you travel, not buried in a bag. This is the single change that most often takes a bag from awkward to manageable, and it costs nothing.

Pack in groups, not in layers

Group by when you will need something rather than by what it is: sleep, cook, wash, fix, and documents. A stuff sack or packing cube per group means the thing you need at dusk is not at the bottom under the thing you need at noon. It also makes the list checkable — you are confirming five groups, not forty items.

The night-before check that catches most mistakes

Lay everything out, then remove anything you cannot name a use for. Charge what needs charging and put the cables with the devices. Check that the first layer you will want in the morning is at the top. Confirm the weather one last time, because a list written on Monday is a guess about Saturday.

When a list should change

Update it after the trip, not before the next one, while you still remember what you never touched and what you wished you had. A list that never shrinks is a list nobody is actually using.