On the Dutch forum we concluded that visualizing all OSM data on a map is impossible.
We also concluded that it is evident that different occassions needs different subsets on the base map.
Is it possible to collect different overlays on osm.org so everyone can choose and all relevant data is visualised in one way or the other?
have a look at http://www.openstreetbrowser.org … does that help?
That is far on my route of thinking. I’m sitting now on my holiday camping in Toscany (pitty) and struggling with a smartphone prehistoric download rate. But what I have seen is that Skunk has made a teriffic tool.
After my return back in Holland I will investigate the OSMBrowser and contact this forum or maybe Skunk directly with praises and remarks. 
Thanks for this link.
ZMWandelaar