In the world of sales, do not be surprised if you find yourself with a lot of options for employment. If there is one job that is in demand these days, it is under the sales section of any company.
It is best to always have your resume around. You never know who you would bump into and would suddenly ask for your resume. Sales are the life stream of most companies and that alone should be pertinent. If you are inclined to hold on to a sales career, keep your resume updated along with accomplishments for better opportunities to come your way.