A laptop computer certainly provides you with an unprecedented level of freedom and mobility away from office. However there are a few extras you might want to bring along on your laptop travels:
Extra 1: portable printer
If you travel a lot, you never know when you might need to commit one of your digital documents to paper.
Sure, you can probably find a Kinko's, or even business center at your hotel, but experienced business traveler knows you're much better off when you're not at someone else's mercy.
Extra 2: USB hub
If you need to connect to several external devices simultaneously, one or two USB ports on your laptop may or may not be sufficient. If not, keep an inexpensive four- port USB hub in your laptop case.
Extra 3: PC card token ring adapter