not forgetting (someone or something)
Including; as well as; last but not least. And finally, not forgetting our stalwart IT department—there's no way we would have been so successful this year without their incredible work. So in the morning, you'll need to open the blinds, water the plants, and feed the dog. Oh, and not forgetting the heating system, which you'll need to turn off from the night before.
not forgetting...(British English) used to include something in the list of things that you have just mentioned: I share the house with Jim, Ian and Sam, not forgetting Spike, the dog.
See also: not