First off, congratulations!!

Be sure that you have an account with all major airlines and hotels. And if you have to pay for expenses yourself and then get reimbursed for them, I would get a credit card that you're going to use ONLY for business purposes. If you'd rather have more frequent flyer miles I would get a card with the airlines that you'll use the most. If you'd rather have hotel points, then I'd get a card with your favorite hotel (and one that you'll be staying at often for business). Personally, I like the airline cards because of the additional perks.

And if this is your first job where you'll be traveling alot, then there are a lot of other things that you can do right now to make life easier and make for a smoother adjustment.

If you're going to be traveling each week or close to it, then be sure you have plenty of dress pants & shirts, a couple good pair of shoes, shoe trees, a good durable suitecase, one of those small plastic shoe shine things, a good cell phone & plan that will allow you to call anywhere in the US, at least a 2GB zip drive.

If you have any questions, feel free to email me or IM me on here.