I think little details would be nice, coming off of the desk especially, made the shelving unit. I like the idea of tape rolls being attached to his desk as if he's a handy man and is prepared for any situation. Tapes for every need.
DIY Cordless Drill Storage And Charging Station http://diyprojects.ideas2live4.com/2015/12/11/cordless-drill-storage-and-charging-station/ This wall-mounted cordless drill storage will help keep the entire workshop looking clean and organized. It also serves as the charging station so that items related to your cordless tools are always all in one place! If you don't have any wall space available anymore, you can incorporate this idea into an existing furniture/storage in your workshop!