The beginning of each year brings another round of trade shows for most associations.  Industry suppliers are already gearing up to meet clients and potential clients to talk business in all areas of operations and services.  While trade shows are only one of many tools in a supplier’s sales and marketing tool chest, they are often the most expensive investment from the cost of the booth or sponsorship, travel, hotel accommodations, and meals to employee time and salaries. So, it’s imperative that they realize a return on the investment. Here are some tips for preparing before, onsite and after a…