Cost-efficiency is driven by volume, packaging, and logistics. Increasing order quantity typically reduces unit costs by 15-25% when hitting price breaks (e.g., 500, 1000, or 5000 units). Consider custom packaging; while it increases brand value, it also adds to the shipping volume. To save costs, opt for flat-packed gift boxes or 'bulk packing' if individual retail boxes aren't necessary. Additionally, sourcing from Made-in-China.com allows you to compare factory-direct prices, cutting out middleman markups.