It is always a mess to deal with water, power, etc. bills at home in an efficient manner.
Moving to a more organized approach, I am now scanning all of those and saving them digitally for better reference and retrieval.
The same with invoices, product warranty, etc.
Of course, the original paper documents are also saved on a folder in a closet, but I don’t need to search for them there anymore.
Documents can be scanned to image files as well as PDF files. PDFs are better for searching inside the docs, but categorizing them on folders and having a standard naming convention for files also solves the search issue…
As I am still testing this so I don’t know, yet, which method I’ll be choosing. Image files are much smaller and are the only option for handwritten docs (cheque slips, for example).