When you travel you always take some sort of small carrying bag with you to help you keep your items organized. When you make your way out to the health club to exercise you bring a bag with you to carry your apparel and water bottle to help you in your work out. Imagine how many people in the course of a day see that travel bag and your sports bag. Now imagine if your company logo was on a promotional travel and sports bag that was distributed to hundreds, maybe thousands, of your customers who would gladly use the bag and gain your company that much needed exposure.
It is almost a necessity if your company has any business dealings in the travel or health sectors that you give out promotional travel or sports bags as there is a good chance your competition is already distributing these pieces of marketing gold. The cost for printing your logo on these bags is minimal compared to the distances these billboards will travel as your customers gain you significantly more exposure than almost any other kind of marketing.