Create Roll Up Summaries using Flow in Salesforce

I recently came across the need to build many roll up fields that far exceeded our 10 per object limit. I came across this blog that explained how to create a roll up using flow in Salesforce.  Flow allows you to build a roll up between both Master-Detail and Lookup relationships.  Hopefully this will help you in beating the roll up field limit.  It helped me so much I have added it to my Salesforce Tips & Tricks Page.

How to: Create Roll Up Summaries Using Flow