The single best decision you can make before a multi-week European trip is also the least intuitive: bring less. Far less. The travellers standing at the baggage carousel in Rome, then the left-luggage queue in Florence, then the cobblestone drag to their Airbnb are carrying regret as much as luggage.
The 10-Litre Rule
Every item in your bag should earn its place. If it won't be used at least three times in three weeks, it stays home. This alone eliminates half the average traveller's packing list.
The Clothing Formula
Three tops, two bottoms, one dress or smart layer, one rain layer, three sets of underwear and socks. All in merino wool or technical fabrics that dry overnight. Wear the bulkiest items on travel days. Done.
The Tech Edit
One universal adapter, one portable battery, one set of earphones, one camera or use your phone. Everything else is redundant weight. Cloud backup means you don't need a laptop for most trips.
The reward for packing light isn't just convenience — it's freedom. You can take the night train on impulse, switch cities without a plan, and walk anywhere without exhaustion. That's the Europe trip you'll remember.