In December, the 200 employees at SAS Shoemakers in Pittsfield, Mass., and the 270 workers at Stine Seed Co. in Adel, Iowa, were each given Christmas bonuses of $1,000 for every year of service to the company. In other bonus news, Tower Automotive of Traverse City, Mich., gave employees $15 Thanksgiving grocery gift cards, but then withheld $5.51 of that as federal and state income tax, and Air Canada gave coupons to 100 of its best-performing customer-service personnel, redeemable at restaurant...