It changes week to week thanks to the program I'm on so I'm usually checking the next weight, pressing 'done' on the set, and sometimes checking the graphs generated to get a sense of what % volume I'm adding. Sometimes I also like to take a quick look at how I'm progressing for fun accessory movements like box jumps, especially if it's been a while since I last had them programmed. I get that if you're on Stronglifts 5x5 or whatever program it's easy to remember without a phone, but that's not necessarily the case for everyone. Also did you follow me from the Edinburgh subreddit? Weird to necro a post.