Clients who regularly email me updates as to when they're going to bring me their "paperwork" for their tax return.
Rather than waste everyone's time, just get the stuff together and bring in for God's sake!
So many people send me emails "I'm going to get it together this weekend", then a few weeks later it's "Sorry, I had a funeral to go to, I'll do it next weekend", then a few weeks later, "Sorry, I was waiting for a duplicate bank statement, but I've got it now so I'll do it next weekend". On and on it goes. Some people literally send me a dozen or more updates over several months. I could understand it if I was pestering them or sending them reminders, but I don't - these are all just spontaneous emails from them that are completely useless to me!
Then don't get me started when they actually have it all together and are ready to bring it in. Same story, email saying they'll drop it in Monday morning, they don't show, so another email saying sorry, they'll drop it in Friday instead, no show. Then when they eventually do come, they send an email beforehand saying they're on their way, followed by a text saying they're stuck in traffic and will be an hour late. It's not as if they've made an appointment - I really don't care when they come - they can come anytime they want - the office is open 8 hours per day! And after all that, they hand in a small envelope that could easily have been posted or just put through the letterbox.
It drives me absolutely insane. Always the same people. They must need validation for every little thing they do (or don't). Good job the majority of clients aren't like that. Their paperwork just turns up, no fuss, no advance notice.