What do you want to become? Thus, a catchy jingle helps build a good customer base. If you really love orchestral music, score a couple things and start to create a reel to get the work you really want to be getting.
This method is most typical with lesser known jingle writers, as the hiring agencies usually have more leverage. And the next demo you record will be that much stronger. In addition, certain local licensing or regulatory requirements may apply.
It only requires a simple but unforgettable melody that introduces your product. Keeping accurate and detailed accounts also greatly simplifies your annual tax filing.
Are they dance tracks and electronica, or more quirky, acoustic songs from artists like Ingrid Michaelson? Simple yet effective, they've made a good use of repetition and rhyming words.
Find a mentor. Test out your jingle on friends and family. That's the method some of us used to mug up answers, didn't we?
There are other ways to get in that might take longer, but the benefit is you get to see how the industry works instead of sitting at home trying to pitch from nowhere.