By Anne Holland, PresidentWelcome to the very height of coupon season. Roughly 20% more coupons are redeemed this time of year than any other. But, according to a fascinating data report from CMS (see hotlink below), your redemption rate can range from a low 0.22% to 20% or higher depending mainly on the big three factors:a. distribution method — in-store instant redemption pulls the bestb. coupon value — higher usually does betterc. expiration date — longer is preferred for print couponsCoupons are not just for CPGs (consumer packaged goods) anymore. Two new ideas are:o Search marketing and couponsAccording to MarketingSherpa’s Search Marketing Benchmark Guide, more than 60% of US online consumers use search engines to research purchases at all price…