Abstract: An email client receives an urgent tagged email sent by said sender. An urgent timestamp is obtained based on a stored timestamp of a previous urgent tagged email by said sender. Based on the urgent timestamp, it is determined whether said urgent tagged email is allowed. The allowed determining comprises determining whether the urgent tagged email was received within a defined time interval and determining whether the previous timestamp is an allowed value. If the urgent tagged email is allowed, the urgent tagged email is displayed in the email client with an urgent response; a user evaluates whether the urgent tagged email was worth being tagged as urgent; if the urgent tagged email is not worth being tagged urgent, the stored timestamp is updated to the urgent tagged email date; and if the urgent tagged email is worth being tagged urgent, the stored timestamp is updated to the allowed value.

Abstract: Mapping signal strength. A signal strength monitor is polled to measure signal strength. Each polled signal strength is associated with an associated geographical position. The signal strength and the associated geographical position is stored in memory. The stored signal strength and the stored associated geographical position is sent to a server. A coverage map of a geographical area is generated based on the stored signal strength and the associated geographical position in memory.