Make yourself standout at tradeshows or networking events by handing out something that makes you unique or tells a little more about your business than just a business card.  If you have free samples put them in a small cellophane bag that you can pick up at Joann Fabrics or Discount Cards or Party Store Outlet and attach a card that has a photo of you on the front with your website and business information and a special tip on the back related to your business.  For example if you sell Make Up put in eye shadow or lip gloss sample and on the card put tips on how to apply the makeup for daytime and evening.  If you sell vitamins put a sample in the bag and tips related to vitamins on the back, maybe a reminder of what vitamins people are lacking or what IU means compared to mg.(How many IU's do I want or how many mg's?)  This is confusing for me to remember the difference and I would hold on to a card that had a tip I wanted to refer back to!

So give something of value, packaged attractively, make yourself stand out and leave a lasting impression.