Group 1 - The article emphasizes the importance of not placing mobile phones with certain items to avoid damage and inconvenience [3][10][15] - It highlights that keys should not be kept with mobile phones as they can scratch the phone screen, leading to costly repairs [6][8] - The article warns against keeping bank cards and identification documents with mobile phones due to the risk of demagnetization, which can hinder their usability [10][13] - It advises against storing cash with mobile phones, as it can lead to loss of money and increase the risk of theft [16][20]