It may seem excessive, for some one who has no family and only one mouth to feed to have a Costco membership, but it honestly is very economical. A Costco visit always requires self control to insure you only buy what you need and not what you want. My bill is usually between $50 – $100. Costco Shopping List Pre-Washed Organic Baby Spinach – $3 for a huge box, I usually use half for salads and put the other half for smoothies Bananas – $1.98 for a huge bundle, I let them get a little brown and then freeze them Almond Milk – $8 for a case of 6, way cheaper…