Valheim 1.0 Guide: Prepare The Trip Before You Leave The Base
Food, Rested time, portal materials and a return plan matter more than squeezing one more armor upgrade into every expedition.
Most failed Valheim trips begin at the base. The player leaves without enough Rested time, uses old food, fills every inventory slot and has no safe way home. Fix those decisions before another armor upgrade.
Eat for the job

Use three current foods before entering a dangerous biome. Favor more health for close combat and more stamina for long climbs, bows or evasive play. Cheap food is fine around the base; it is false economy on a trip where one death leaves gear across the map.
Leave with Rested time, not just the Rested icon
A nearly expired buff will disappear when the expedition becomes difficult. Repair equipment, use the best comfort room available and wait for the full timer. Rested recovery affects running, fighting and the ability to escape, so it supports every other preparation choice.
Reserve inventory space
Do not leave with a full row of optional tools and materials. Decide what the trip is for and keep several slots open for its resources. A full inventory turns discovery into sorting and encourages bad decisions while standing in an unsafe area.
Carry a way home

For a long scout, carry the materials for a workbench and portal, then keep a matching unconnected portal at home. Ore restrictions still require ships and roads, but a temporary portal lets the player repair, recover food and return to the route without repeating the safe half of the journey.
Mark the retreat before the objective
Place map markers at landing points, shelters, dangerous borders and useful passages. Repair the boat before sailing and leave it facing open water. If night, weather or inventory ends the trip early, follow the known route instead of improvising while stamina is already low.
Make the first outpost small
An outpost needs shelter, fire, storage, a workbench and a portal. It does not need to become a second main base during the first visit. Secure the route, move resources and expand only when the location proves useful.
Valheim rewards preparation more than bravado. Three good foods, a full Rested timer, empty inventory space and a return plan prevent more deaths than one extra armor level taken into a bad trip.