By the Numbers
If you're running an event and you need customized products, it's helpful to consider past events. Did you organize a similar event last year? Check any turnout data you've collected ... sign-in lists, registration rosters, participation reports ... to predict potential turnout for this year. Having a general attendance number is a good first step to figuring out how many giveaways or marketing pieces to order.
When it comes to ordering apparel, you probably have a pretty good idea of how many people might be coming to your event, like an invite-only golf tournament or nonprofit 5k fundraiser. In those cases, "what size" is just as important as "how many." If you don't know everyone's preferred size beforehand, this handy group buying guide can help you figure out how many of each size to order.
If you're not ordering for an event, but want to get personalized portfolios for your sales team or stock your supply closet with custom sticky notes, your office manager or HR personnel will probably have a good idea of exactly how many to order for your business.