So I googled. Google told me to soak the glasses in white vinegar and water. Tried it. Didn't work. Resulted in disgusting looking AND tasting glasses.
I found a new tip. It seemed a bit absurd. But it WORKED! Just apply cheap white toothpaste and brush* the glasses (inside and out) like you're brushing your teeth. So simple! So cheap!
I have attached a picture so you know its true (and cos blogs with pics are so much better);
|L: Before, R: After|
|The glass wasn't keen on posing, but I bribed it with cleanliness|
*Best buy a new brush so your glasses aren't covered in your toothy germs
Look what I made
Its made of toilet paper to represent the link between recycling and essential bathroom materials....*ahem* (Actually its just made of toilet paper because its a cheap craft material.)