I am very experienced with AutoLISP. Although I can code fairly advanced routines, I market myself as someone who can provide my clients with very simple LISP routines that will dramatically increase productivity. Better Yet, you'll actually be able to edit the routines yourself, no coding experience required (I can teach you in less than 5 minutes). I can make very useful dynamic blocks, and even Revit Families (I require some notice however). These skills are best used in combination with production drafting work. My most useful productivity tools were created while working on actual projects. Drafting places me front-line-and-center and therefore gives me the best perspective of the actual workflow; that's where my skills stand out compared to other customization specialists. If you just want a quick and easy productivity tool and don't require actual drafting services that's perfectly fine too of course. I can create quite complex dynamic blocks in a very short amount of time.