Have you ever needed to find out where a site visitor physically was for something beyond analytics? I'm talking about things like finding your user on a map or locations of Store X within 50 miles of the user’s current location. Well, I have, and I've found there's not really one solution that fits all users. Sometimes I find myself having to mix methods to provide the best overall user experience and/or changing up my execution depending on my needs.

For the most part you can break it down to three questions:

How many times have you been coding something and it doesn't work even though you've used an api/function call hundreds of times before?  I ran into this the other day with node_load().  For those of you use the node_load function, can you tell me how many arguments it has and what those arguments do (without looking at api.drupal.org?  I know, some gurus can, but can the average module developer do it?)