Here you still get those boxes! DIY store rebrands usually come wrapped in plastic (shrinkwrap) instead of in a box. The only difference is the position of the finger hole, it's usually in the middle of the opening section, that reduces the snags considerably. The shrinkwrap packs are ok as long as you use them up quickly, otherwise they tend to fall apart.
My personal record with conduit singles was 8 I think... I ran wiring for a mixed lighting/receptacle circuit and had no less than two 3-ways. In that place I used all colors I could find - black, blue, yellow/green, brown, grey, orange and purple. It was retrofit work, otherwise I'd have used two parallel conduit runs.
