The concept of our "15 Minute Rule" was spawned from the realization that nobody likes to receive an invoice for 6 minutes worth of work.  These short billings eventually became more of a nuisance to both us and our clients than the revenue was worth.  So, we decided that any work that was less than 15 minutes and didn't require substantially shifting a resource, was always going to be free.  This means short phone calls, questions, emails and the like are all unbillable events in any of our divisions.
Some years later we decided that if we were willing to do this for our clients then we should be willing to do it for everyone if we have time.  We'd rather have you do it right the first time than suffer through something we can easily help you out with.  Frequently, it only takes a little bit of extra know-how to get the job done and send you home while it's still light out.
Need to get an expert on the phone to find out if you're on the right track?  We can do that. 
Need to get some information about setting up a cluster from someone who's done it a few dozen times before?  We can help with that too.
Not sure when or if your data should be in the cloud?  We've helped people answer this. 
Is your Exchange server hording or bouncing your mail? We can get you back in business quickly.
Linux servers acting up and you don't know why?  We've been doing Linux since it first came out in the early 90's and are well versed in most of the issues you can see from them.
We get questions like these and a great many more all the time and are glad to help if we have time.
So please don't hesitate to call us with any questions you may have.  If we can, we'll help you out.  You don't need to be planning on becoming a client for us to offer you free assistance, but we hope you will try to consider us for work in the future or maybe tell a friend about us. 
So, if you have a technical question, please feel free to contact us (preferably by email) and we'll help if we can.  For free.