DD is now 8 months and I'm still breastfeeding but have decided I'm not really likely to want to express any more for now so I am about to pack away an Avent hand breast pump until it is maybe needed again (!) - maybe a couple of years. I have re-sterilised it and still have the original packaging but does anyone have any other tips on how to keep it in good enough condition to be reusable in the future?