First, figure out what general area of the country you would like to travel to. California & Washington state take longer to get licensed in, but always have a ton of jobs. Whereas, Texas is fairly simple to obtain licensure and also has a good amount of jobs no matter what time a year. When traveling for longer than a year or two, having those "fall back" states where you can get a job quickly if all else fails is crucial.
Know what your strengths & weaknesses are. Strong ortho & manual therapist? Or, love neuro? In the hospital or outpatient? When recruiters talk to you they are going to ask you what settings you have experience in & where your strengths are.
Next, get job openings from 2 or 3 recruiters from different agencies. This way you can "feel out" the recruiters & who you jive with.
Lastly, look at a few different pay packages, including short term disability & health insurance packages. Many companies cover healthcare premiums but only the cheapo package & they carry high deductibles. Otherwise, their medical is $27/wk. & dental is $12/wk. It adds up.
After almost 9 years of traveling physical therapy, my advise...
Go for it! From home health in the USVI to LTAC in Anchorage!
Experience life & grow your career.