The old Austrian/German version was: have a big junction box in the wall, usually where the feed enters the room and one in a direct line from the ceiling light fixture, parallel to the joists/beams. If you're lucky those two can be combined. Then distribute additional boxes to achieve runs to every receptacle and switch with no more than one 90 degree conduit bend. For example if you have 3 receptacles on one wall, put a box above the center one, run the feed straight down and to the left and right. Once painted or papered over the blank covers are still accessible (though you could argue if the paper job is done too well) but not too obtrusive.
Of course, using cable instead of conduit allows having more bends, but still, that method makes it REAL easy to figure out the layout servicing that install. Like you have the aforementioned 3 receptacle boxes, ech with the feed entering from the top. Above the center receptacle you have a junction box with two conduits from the left, one from below and one to the right - easy to guess the top left is the feed and the other three feed the receptacles.
