Contracts etc
Once upon a time you could start a new contract with a minimum of paperwork and fuss. These days, I'm emailed about 50 pages of contracts, NDAs, declarations and affirmations by the client, the agency, and often some Stasi-like company that does background checks. All these have to be printed, signed (usually on one page out of the 10 I've printed), scanned and emailed back. So I'm left with a thick wad of paper that may be important in some way, and therefore can't be thrown away.
Sometimes I'm tempted to short-cut the process by editing a scanned signature into a document then exporting it direct to PDF, but I'm haunted by the possibility that I'll be accused of "not really signing".