Virtually every conference hands out a bag. Some are well designed and desirable. Some are cheap and crappy. We toss the latter out on the first day. The good ones we still use all the time – promoting your product or service. If you’re going to create a lasting image of your event, pay attention to the bag’s design and utility. Spend the extra buck if needed. It’s a billboard at the convention and — if it continues in use after the event — it’s free advertising for you.