I travel a lot. I was hoping there is a piece I can hook up to my laptop to help increase its wifi range? I know there are pieces you can set up on you router, but I would prefer something that hooks up to my laptop. That way when I travel I won't have issues with reaching wifi networks. I.E. starbucks wifi not working very well in their outside seating area, airport wifi signal not the same across airports, etc. Any pieces I can attach to my laptop to that will increase its range to reach wifi networks? I have a 2008 MBP 15". Thanks.