How To guides for TNEW paths

Hello Tessiturians!

We're looking to create "How To" guides and/or videos that patrons can access on our website to help them navigate our various purchase paths. For example "How To Renew Your Subscription" where we will include step by step instructions on how to do a straight renewal, and how to add a seat request note if they wish to make changes to their subscription. 

We often get calls where the rep ends up walking the patron through the purchase path to buy tickets/subscriptions/gift certificates, etc to help them complete their online order, so we're hoping these instructional guides/videos will help reduce those phone inquiries. 

Has anyone done anything similar for their websites (TNEW or not) and is willing to share some examples?

Thanks in advance!
Anastassia