Despite having a perfectly good dishwasher I find myself doing loads of dishes in the sink. The dishwasher instructions say not to put any wood or non-dishwasher safe plastic items in it which means that choopping boards, wooden spoons, sharp knives with plastic handles, tupperware, etc are out. I also don't put in any oven/ baking trays as they seem to make everything else greasy/ dirty and get rusty. Nor do I put in baby bottles, sippy cups, children's melamine bowls/ plates or cutlery, frosted glasses or any with pictures on in case they come off. Can any of these things safely go in it? What about utensils for non-stick pans - nylon I think?