Comparison Shopping for Groceries & Household
Groceries are bought constantly, so small per-item savings compound into a big annual number. The tools here are unit pricing, store-brand swaps, and a little stock-up discipline.
Unit price is the only fair comparison
The price per 100g, per litre, or per sheet — not the package price — is what tells you which option is cheaper. A bigger box isn't automatically better value; "value" sizes sometimes carry a higher unit price than the standard. Most shelf labels show unit price in small print; read that number, not the big one.
Store brands vs name brands
Store-brand staples are frequently made in the same plants as name brands and cost 20–40% less. For commodity goods — flour, cleaning supplies, basic medicines (same active ingredient) — the swap is nearly free quality-wise. Save brand loyalty for the few items where you genuinely taste or feel the difference.
Stock up at the floor, not on impulse
For non-perishables, buying extra when the unit price hits a genuine low beats buying full-price weekly. But only stock what you'll actually use before it expires — a "deal" you throw away is the most expensive option of all. Track the floor price of your regulars so you recognise a real low.