This to That might be one of the best websites ever. To discover the perfect adhesive, just input the thing you have and the thing you wish to glue it to. But that’s not all! Do you get a headache when you use your hot glue gun? Need to glue your desktop down? What about crayfish??? This to That has a comprehensive list of extremely important glue related FAQ’s. “Because people have a need to glue things to other things.” Photo of all the glue by flickr user ario.