Cracked or frayed cord insulation can expose live wires, creating shock and fire hazards.
A plug that fits loosely in an outlet can overheat because the electrical connection is poor.
An unusually warm outlet may signal a loose connection or another unsafe wiring condition.
Check lamp and appliance cords for cracks, fraying, and exposed wires. Stop using damaged equipment and have its cord professionally replaced, or replace the equipment.
Stop using an outlet that no longer holds plugs firmly. Have a qualified electrician inspect it and replace the worn receptacle.
If an outlet becomes unusually warm, stop using it and have an electrician check the cause before using it again.