I'm an avid Evernote user. My whole life is in Evernote, both business and personal. I use it all day, every day, not only for storage and reference, but also as my to-do list(s). However, as my life has grown more complicated (multiple businesses, properties, etc.), I'm finding it harder and harder to come up with a good organizational system in EN, given the limited number of "tiers" (stacks, notebooks and notes). The more blogs I read and the more Youtube videos I watch, the more I realize that I'm not alone in this dilemma. 2 updates by EN could really help. One would be the ability to do "sub-stacks", which many people have requested. More importantly, would be the ability to tag entire Notebooks, not just individual notes. This way, the same notebook could be given multiple tags, and then viewed in various different groups, as opposed to being limited to a single "stack". This would solve a lot of the organizational issues I've been having.