After either recalling old or finding new, I hope to here place some useful observations on things electrical.

If you're going to insulate your home, you REALLY want to get your wiring in those areas done first.  Plumbing too, most likely.  The electrician can work a lot faster and also a lot more comfortably.

When you're doing something like a kitchen or other "new" space, while the walls are open and without insulation, and all the bits of wiring and plumbing (and more) are showing, and the stud spacing is visually obvious, take pictures. Full-on "flat" pictures are useful because you can sort of scale off of them--you might include a known-length item in each shot.  Detail pictures can also be useful later.  Imagine 5 years hence when you want to inform a plumber just where and where not he should insert his Sawzall blade into your wall.

Architects and interior designers come up with some great ideas.  So do some of the hands-on folks.  I recommend showing your plans to the latter folks and asking them for their comments.  You will frequently get very helpful suggestions.  And sometimes money saving ones.

It's your kitchen, but if I were you, I wouldn't have my recessed lights distributed evenly over the kitchen ceiling--they tend to end up over the floor, but that's not where you're working, is it?  I'm fond of distributing recessed lights over the counter areas--typically at 32" or 48" centers, as the lights have to go between 16" spaced ceiling joists.

KNOB AND TUBE: It isn't necessarily a good idea to rip it all out.  It costs money, after all, to replace it.  Talk to someone with knob and tube experience to help decide what stays and what goes.