The Verge at work: sync your text everywhere, never lose an idea again | The Verge
Of the solutions mentioned, I use Simplenote and Dropbox regularly.
As highlighted in this blog post title, syncing text is relatively easy compared to syncing all kinds of information, from office documents to PDF files, and finding them using a good search function.
Am trying to use Evernote more often, especially as a quick way to save webpages. Google Docs (now incorporated into Drive) does provide a good search within PDF feature.