Wanted to confirm a thing or two about pigtailing outlets. I am remodeling our basement and furring out the walls with 2x2's. I am at the point where I can start pulling my wire boxes out from the block walls to be flush with the new 2x2 studs. Can someone explain what I need to ensure I do when doing this? Pig tailing I mean. I have wire nuts and black electrical tape. Meaning wire nutting the wires together and then securing them with electrical tape. I am going to try and use extensions boxes when I can to add more room for the additional wire and nuts inside the box. I may not be able to add extension boxes on some, so is it OK to cram all the extra in a standard metal electrical single outlet box? Sorry for so many questions. Thank you for any advice.