Wanting to be a freelance writer means that sooner or later you will have to travel. The lucky ones get their expenses paid up-front, but most have to get their expenses reimbursed from the client.
As a freelance writer you will have to travel. Sometimes you will have all of your expenses paid for you, but most of the time you will have to pay for your own expenses and then get them reimbursed. Make sure that you have the deal in writing, you don't want to go and spend your hard earned money, thinking that you will get it back and then find out that you are out of pocket.
It isn't too difficult to take clear, focused and colorful photographs, anyone can do this. The difficulty is taking photographs of pertinent subjects that relate to the articles you are writing, and then getting paid. Every magazine editor wants photos, but are they willing to pay for them.
A handshake deal will always cause you problems, either you or your client will remember something differently. Trust is a good thing, so trust in your contract or written agreement, not in yours or your clients memory or honesty.
Location, subject, theme, time span and especially dollars, all this should be set out in writing before you go buying your own ticket for the travel. Sending off an email advising the editor of your fees and conditions won't do the job, you have to get an email from the client agreeing to your conditions, or offering his own conditions.
No matter how good your article on Spain is, you won't get paid for it if your client wants and article on Portugal. Along the same lines, if you are writing an article about Oranges no one is going to pay you for photographs of Apples, are they.
Business people get paid for what they do, so if you are going to travel, write about and photograph your subject you have to get paid for it. Freelance writing and photography can have residual benefits, your articles and photos can be sold over and over again, if you keep the copyright. Don't give your copyright away, it may be worth something in the future.
To the uninitiated it may seem a waste of time and effort to take so many pics of the same subject. But it is better to have too many photos than to have the few that you take turn out to be useless and amateurish. Take lots of photos then you won't have to go back to your location to re-shoot if something goes astray.
Use a digital camera. With a digital camera you can take as many photographs as you like, you can select the perfect picture when you get home, at your leisure, and discard the rest if you like. But why discard them when you can store them on a disc and keep them for the future.