I second, on the bed with a Verizon Broadband card which has been working great for the last 6 months. I really think its the only way to go to beat their high charges and have Internet access almost everywhere.

Before that, on the bed with a wireless travel router that I would plug into the hotel's Internet connection.

Before that, I would travel with an extra long CAT5 cable to reach the bed or balcony if I was so lucky.

The bed certainly isn't efficient or ergonomically correct but after a long day, that's were I always end up flopping while emailing or working otherwise.