It has gotten harder to remember what I've worked on lately. For the past 15 years, I've been keeping notes in text files to remind me of what I work on each day. It's far easier to do a recursive grep on my top level notes directory than it is to find something in Outlook. I also make heavy use of Confluence to document everything I work on. I think I've created more Confluence pages than the rest of my group combined.
I've kept in touch with a number of people I've enjoyed working over the years with which has made it much easier to find jobs when I need to make a change. For the past 20 years, I've maintained a mailing list to organize weekly happy hours with some of them. I got hit by a RIF 5 years ago (first time in 47 years, believe it or not) and managed to line up a new job in 2 months thanks to a hardware engineer I had enjoyed working with 32 years ago. I also had a few whiteboard interviews during that time which helped remind me why I hate the traditional way of finding jobs.