You can attach something directly to your Tasks when you edit or create a new Task in your To Do List. You can directly attach addresses, files, photos, discussions, and map links.
To attach items directly to your Tasks you'll first need to click on a Task in your To Do List or click on the blue "Click here to add a new task" link. Once you've done that you'll see an upload icon you can click on to select the item you want to attach to your Task. Follow the steps in the image below:
After you see the "Link" pop-up dialog that confirms your item has been attached to your Task, be sure to click on the green "Save" button in the dialog and the "save" button on the Task to make sure all of your changes are saved.