Re: how many outlets and lights
When laying out your outlets, keep in mind that National Electrical Code requires that no point along a usable wall be more than 6 feet from an outlet, and that cords aren't permitted to cross a doorway. Hallways are handled a little differently; I think it's no point on the floor can be more than 6 feet away (since hallways typically have only vacuum cleaners and night lights plugged in). The idea behind this rule is to avoid extension cords.
The "Senior Member" designation under my name doesn't mean I know a lot, it just means I talk a lot.I've been a DIYer since I was 12 (thanks, Dad!). I have read several books on various home improvement topics. I do not have any current code books I can refer to. I was an apprentice plumber for two years.