Internet access: Live e-mail requires Internet access, as does quick Web research, but you can do a fair amount off-line if need be.

Some travel venues have begun provisioning or wired access. But if you don't want to wait on the travel vendor, you can roll your own. Mobile (cellular) service provides access to most non-airflight travelers, as long as you're in an area where there's service.

Very infrequent travelers may find a solution in 's US$9.99 ; no contract is needed. You'll need a device capable of accessing Verizon's wireless network, such as a notebook with embedded mobile broadband, or a Verizon Wireless BroadbandAccess USB modem or . You can also consider upgrading your phone plan to include some data services, and .

Power: Keeping the laptop turned on is essential, but this is the easiest issue to address. Some vehicles have power outlets. If you aren't confident the entire trip, invest in a spare battery (usually the most weight- and space-effective solution) or buy an external .

Time is, of course, a consideration. Does your preferred approach fit your schedule? You can work out the door-to-door time for yourself, given your previous experience. In addition to the time you spend waiting at the airline gate, factor in time spent waiting at . Plus, most rail and bus service leaves from and arrives at downtown locations, while airports add at least cab fare.