I can stuff a few papers in an envelope, scribble something resembling an address on the outside along with a few coins worth of stamps and leave it to be picke

I can stuff a few papers in an envelope, scribble something resembling an address on the outside along with a few coins worth of stamps and leave it to be picked up without prior notification to be delivered anywhere in the country only a few days later. Maybe longer if I was particularly bad at writing the address. This is practically a super power.