This document discusses various sales promotion techniques used to boost short-term customer buying and involvement or enhance long-term relationships. It outlines both consumer promotion techniques like free samples, gifts, coupons, and in-packs as well as trade promotion techniques such as premium gifts, combination sales gifts, purchase privilege plans, coupons, cash refunds, rebates, additional weight offers, exchange schemes, and contests. The goal of these various sales promotion strategies is to encourage customers to purchase products now through incentives, trials, and discounts.