So glad I happened upon Bublup last year. It has become essential to both work and home life, and has mostly replaced several apps AND my bookmarks bar, bringing everything together in one simple, organized, and searchable place.
I have used Bublup for researching various projects, prepping for meetings, presentations, taking visual inventory at work so everyone can find things (a similar app that does visual inventory is $40/month! Bublup replaces that!), keeping all our office "sticky notes" and customer communications searchable, communicating and sharing files around the office, sharing proofs and drafts with clients via rolls, and making lists and storing files as well as a bunch of other things. I haven't even begun on the personal uses.
Bublup should have been called "LifeHub" because that's what it is for me.