I save and reuse everything. I found one of these at a local Scientific store and have really gotten good results with it. I put all my small pieces in it with soapy water and then spin them clean, drain into a large spagetti strainer, then spin them through a rinse cycle. (I paid $5, but it's listed here for $2.5, it was well worth the money)
American Science & Surplus : Search Results for "twister"
American Science & Surplus : Search Results for "twister"