Definitely put it on your resume. You should be able to put yourself down as anything you want! Owner, operator, manager, bookkeeper, chief cook and bottle washer, etc. The library and internet has a ton of resources on how to write a good resume. Look at it this way- you now can claim the following skills: management, sales, accounting, purchasing, inventory control, manufacturing, quality control, research and development...you have a lot more skills than you realize. Remember, if you don't toot your own horn, who will? Good luck in the job search.