Yes, Evernote Premium was the very first thing to come to mind.

I also use RescueTime and OmniFocus. There are plenty of paid apps on my phone / tablet / computer, but those are ones that I would struggle to replace.

The paid app I would love to get rid of: Quickbooks.

It's interesting how so many people on here are instantly thinking "Evernote" when they think of paid online services. I think it's one of the few things that people are actually happy to pay for.

Have you found the paid experience with RescueTime to be worth it? I've been using it for free for a bit, and I feel like I get just enough data; it's hard to see what else I'd want from it.

I have alerts set up to notify me when I have goofed off too much for one day. That feature alone is worth the premium fee for RescueTime.

What don't you like about Quickbooks? Why not switch to something else?

Quickbooks seems to be moving away from being about managing financial books and more about offering services that integrate with a company's books (payroll, invoicing, etc).

I run a business without Accounts Receivable and just need a reliable way to keep books. However, it is not a simple business. We have multiple revenue centers (departments or classes), multiple bank accounts, and multiple cash accounts. Intuit seems to be moving away from companies like mine (oh, and I use a Mac).

I was really excited when they moved Quickbooks Online to a more modern interface. Unfortunately they made some frequent tasks (browsing our chart of accounts) much more difficult that it used to be. Invoicing is much more prominent though.