Tip Nº 01
Migros own-brand pasta plus pesto is the CHF 6 dinner that takes 4 minutes — boil water, mix, eat. The Migros Bio range own-brand pesto is half the price of the Sacla import and tastes the same. Buy the 500g bag, splits across 5 dinners.
Tip Nº 02
Both hostels have fridges with shelf-by-name labeling. Use a marker to label your stuff (the hostels supply markers at reception) — items unlabeled longer than 24h get binned. Standard hostel kitchen etiquette, enforced more strictly in Switzerland than elsewhere.
Tip Nº 03
Migros at Cornavin is open 6:30am-11pm seven nights a week — the only late-night grocery option in central Geneva for big shops. Coop Pronto across the street runs 24/7 for the small-shop essentials (bread, cheese, fruit, beer). If you arrive late at GVA, do the Migros run at Cornavin before walking to the hostel.
Tip Nº 04
City Hostel's dishwasher is the unsung hero — group cooking with three other guests is realistic because you don't spend 30 min washing up afterwards. Coordinate at the lounge in the afternoon, cook together at 7pm, run the dishwasher overnight. Splits cost and effort 4 ways and turns the kitchen into the cheapest social move of the trip.