Same-day delivery brings 'Target effect' to cities, with retailer carrying the bags

Shoppers at Target Corp.'s suburban stores know all about the so-called "Target effect" — that thing that happens when you go into a store for, say, shampoo — that's it, just shampoo — and walk out with $75 worth of stuff. Now Target's stepped-up delivery offerings is bringing the phenomenon to its small-scale, urban stores.