I am due to have baby #2 in a few weeks and will return to work sometime in May. I am wondering if I need to purchase a new pump. The one I have was well used for over a year (3 x a day, 4 days a week) and will have been retired for about a year before I need it again. I am leaning towards needing a new one, as I wonder if the pump strength weakens as it gets old. Also, if I need a new pump, what can I do with my old one? Just toss it in the trash? I hate to see things like this go to landfills, but it doesn't seem as if there are other options.