Just my 2 cents:
Despite comments like &quot;wrong tool for...&quot; this gives great elasticity when it comes to data manipulation, you can grep it, put in RDBMS, make csv&#x2F;graph&#x2F;one large flat file out of it, keep it in VCS etc.
Sure you can use one of billion apps to do that, but then what&#x27;s the point of developing your own solution to anything, just buy&#x2F;use someone else app.
Keeping your financial data in cloud for me seems like so-so idea.
Of course there&#x27;s emacs mode for it ;) (<a href="http:&#x2F;&#x2F;orgmode.org&#x2F;w&#x2F;?p=org-mode.git;a=blob_plain;f=contrib&#x2F;lisp&#x2F;org-invoice.el;hb=HEAD" rel="nofollow">http:&#x2F;&#x2F;orgmode.org&#x2F;w&#x2F;?p=org-mode.git;a=blob_plain;f=contrib&#x2F;...</a>)