Ask HN: What is something you do for clients that consistently blows them away?
Not a developer but love technology:
I began my organization skills by deconstructing simple BASIC games when BASIC was around as a pre-teen. 
Now, I'm hired to organize physical and electronic records, establish filing systems, workflows, and make physical records match the electronic records.Create presentations that gather audiences' attention while not taking over from the speaker.Desire to break into business analysis and have performed the work but not enough to make it official.Past life created billing reports and client bills for a law firm. That took their THREE day billing process to less than one day on a sneakernet Access DBMS I designed.Have also created feasible project and organizational budgets for humanitarian nonprofits.Created an ad-hoc computer class for uneducated adults. Was told, "I've learned more with you in 15 minutes than a whole week at the community college." I purchased those computers for $4.00.