Keep the useful part.
An email can contain a link, a photo or a document worth saving long after the conversation is finished. Forwarding to a private save-it address gives that material a place of its own.
Save small, useful groups.
Begin with one company or one project. A few folders and tags are often easier to maintain than a complicated system built before you know what you will keep.
Send financial work to the right app.
DoSaveIt keeps a copy of financial documents. Receipt processing belongs in DoReceipts, bills in DoPayables and books in DoLedger. Keeping a document and processing it are different jobs.
Product information is based on the supplied brief. Example figures are illustrative. This article is not accounting, tax or legal advice.