My scenario is that I have a receptacle that currently feeds to bedroom lights, which is the end of the series on the circuit. I would have to fish the wire a good distance from the light switch and would not be ideal.
Option 1: Would it be appropriate to pigtail like below? Pretend that last outlet is a light switch.
Option 2: The incoming power to the receptacle in the diagram goes through unfinished basement area. I could do a junction box and splice there.
Option 3: I can't think of what they are called, but I could use a new receptacle that has the ability to feed multiple receptacles with a bar with push in, or something like that. I am not talking about the scary stab ins. I would replace the first receptacle with this new one.
Best Answer
Your Option 1 is 100% acceptable. Several key points to keep in mind:
Make sure you use appropriate gauge wire.
Is the outlet switched? If so, be careful about how you attach wiring to ensure that your new outlet is switched or is not switched, depending on what you're after.
Based on a comment on the OP about replacing the box with a larger one to ensure there's enough room for wiring:
Your Option 2 is also acceptable with caveats: