For the past 2 years I organized my expenses on google drive, some came by mail,(gmail) so I just save to drive on the proper path. other came on hard copy, so I used the camera to scan to drive. a few months ago I start paying to an accountant to manage this stuff for me, saves me time and money. the hard copy I just put in an envelop and deliver every 2 months (no hassle). The emailed ones are still a pain, So I decided to automated those ones.