I am the first to admit I have the long term memory of a gold fish, which means when it came to cooking eggs I knew I had come across egg trees on my travels but ended up spending a delightful 20 minutes meandering about the world looking for them...of course they turned up one hub over from where I started...
And I thought to myself, for people like me it would be really nifty if we could place our own map markers - like "here be eggs", or "Eglantine lives here". Not wanting to take away from the exploring aspect, I love rambling through hubs, but sometimes you just want a couple of eggs, stat.