You want to implement this script which creates a markdown log of all the files in DT that you’ve interacted with that day: Grouping items by date opened or like a daily journal - #6 by pete31
You’ll also want to make DT your main navigation if it isn’t already so that any time you open a file you do so from within DT and it gets picked up by the script.
For web browsing, you want to purchase HistoryHound and set it up to track your browsing across Safari and Firefox. That at least pulls all your history into one place, so you don’t have to remember what browser you were in.
I vaguely recall reading somewhere that someone had set up a script to write HistoryHound’s data to a Markdown file, but I never implemented so can’t advise on that. Perhaps worth a Google though.
Task Manager apps are a whole different ball game. You can’t just swap to a new app if one doesn’t meet all your needs. Reminders didn’t work for me for other reasons, and I’ve finally settled on NotePlan. It’s a markdown based task manager where files are stored natively and each day is assigned its own note. This could work for you because you can keep a file open during the day to add notes to, manage your tasks in there, etc. I use my daily note for all sorts of things, e.g. memos to myself, things I need to remember for later as well as writing down my to-do lists. I’ve set up a template with different sections where I add different bits (there are videos online and the developer has great examples).
NotePlan has its own searching and linking system and I mostly use that, but you could either archive old notes to DT or even index the NotePlan folder to your database if you want to find everything via DT. They’re just markdown files so they’re readable outside NotePlan. As an example, I keep project notes in NotePlan, with things like meeting minutes, next actions, stray thoughts I’ve had whilst doing something else, etc. When I add the project to my daily to-do list, I either write a specific task I need to do that day, or just link to the project note and tell myself I need to work on it (I’d then track the tasks via the project note instead of my daily note). When a project is complete I move the file into DT. It’s no longer in NotePlan, but I can refer back to it if I need to.
It wasn’t my reason for switching to NotePlan, but it does mean I now have a handy daily log that’s recorded what I worked on, and it means I can easily track projects via individual files that can be moved between my task manager and my database as needed.