cleaning

I am beginning to explore homemade cleaning products. I want to start with glass cleaner. I use it a lot and it seems like a logical place to start. I'm currently collecting orange peels to make orange-infused vinegar to use in cleaner recipes.

Hi All, My husband's work (baseball style) caps are filthy and need to be cleaned, but I don't know if they are machine washable or what material the brim is made out of. The caps are black with red and white stitching. I'd really appreciate advice on cleaning them! Thanks!