Research has shown how product promotions attract more customers compared to other promotions. New customers who receive promotional products tend to return sooner, more frequently and spend more money. The reason for this is that businesses know who their potential customers are and they tend to skew their choices of promotional products toward these groups. Personalizing them with brand names, company names or logos maximize their potential for brand name and company name retention.
Decide on the products that you feel will benefit your company most. Settle on your budget. Remember that the lower you can bring your budget for each piece, the more people you will be able to reach. Remember also that this will be a reflection on your company. If you scrimp too much, it will show. That might not exactly be the image you want to project.