Career journal vs brag doc vs spreadsheet: what actually works
Three approaches to tracking career achievements, compared honestly. Spreadsheets are free and flexible. Brag docs are low-friction. Career journals generate outputs. Here's how to pick based on your actual behavior.
If you've decided to start tracking your career achievements, the next question is how. There are three common approaches, and each one works for certain people. The goal here isn't to rank them. It's to help you pick based on how you actually work, not how you wish you worked.
The spreadsheet
The most common starting point. Open Google Sheets, create columns for date, project, achievement, and impact. Start logging.
What works. Zero setup cost. Totally customizable. No new tool to learn. You own the data completely, it exports to anything, and it works offline. For someone disciplined enough to maintain it, a spreadsheet is genuinely fine.
Where it breaks. Without structure enforcement, the spreadsheet degrades. You skip the "impact" column because you're rushing that Friday and eventually every row is just "worked on X." Searching for "that stakeholder situation from Q2" means scrolling through 200 rows. And when you need a resume bullet or interview story, you're copy-pasting and rewriting manually.
The biggest issue: spreadsheets don't remind you to use them. They sit in a tab you closed three weeks ago.
January: Clean start
Columns are filled in. Impact noted. Tags applied. You feel organized.
February: Slipping
You skip the impact column twice. A few rows just say "meetings." The tags column is empty for the last five entries.
March: Sparse
Three entries for the whole month. One of them is "busy week." You open the spreadsheet, feel guilty, close it.
April onward: Abandoned
The spreadsheet joins your budget tracker and workout log. You'll start fresh next quarter.
Best for: People who already maintain spreadsheets for other things and have the discipline to keep one more updated. If you track your finances in a spreadsheet and actually stick with it, this might work for you too.
The brag document
A running document -- Google Doc, Notion page, plain text file -- where you dump wins as they happen. Less structured than a spreadsheet, more narrative.
What works. Lower friction than a spreadsheet. No columns to fill, just write. It captures context and story naturally, which makes it easier to share with your manager during review season. Julia Evans' original brag document format has worked for thousands of people.
Where it breaks. Brag docs tend to only capture wins. Challenges you navigated, decisions you made under uncertainty, feedback that changed your approach -- these fall outside the "brag" frame, so they don't get written down. But they're often the most interesting material for interviews.
The document also gets long and unsearchable fast. After six months you have a wall of text with no tagging or categorization unless you impose it yourself. And the same discipline problem applies: without a built-in trigger, you stop updating it around week three.
What brag docs capture
Wins. Shipped features. Positive feedback. Metrics that went up. The highlight reel.
What brag docs miss
Hard decisions. Tradeoffs you navigated. Feedback that stung but changed you. Projects that failed and what you learned. The full picture.
Best for: People who think in narrative rather than data, and who primarily need material for performance reviews (not interviews or CVs).
The career journal (with a purpose-built tool)
Regular short captures -- voice or text -- that get structured automatically. Achievements extracted, skills tagged, patterns identified, outputs generated (STAR stories, CV bullets, interview prep).
What works. Lowest ongoing friction once set up. Two minutes per entry, no formatting decisions. Retrieval is instant -- search by theme, skill, or time period instead of scrolling. An output layer exists: you don't just track achievements, you generate documents from them. And pattern recognition surfaces things you'd never notice on your own, like the fact that your highest-impact work always involves cross-functional coordination.
Where it breaks. Requires adopting a new tool, which means switching cost and a learning curve. The AI structuring is only as good as your input -- vague captures produce vague outputs. It costs money, unlike a free spreadsheet or doc. And you need a few weeks of entries before the pattern recognition has enough data to add real value.
Best for: People who have tried spreadsheets or brag docs and abandoned them. People who need outputs -- interview prep, CVs, promotion cases -- not just records. People who prefer speaking to typing. Check out the career journal and achievement tracking features if this sounds like your situation.
The comparison
Here's the full picture, side by side.
| Spreadsheet | Brag doc | Career journal (Koru) | |
|---|---|---|---|
| Setup effort | Low | Very low | Medium (new tool) |
| Weekly time | 5-10 min | 5 min | 2 min |
| Structure | You build it | Freeform | Automatic |
| Searchability | Basic (Ctrl+F) | Poor | Full (by theme, skill, time) |
| Output generation | None (manual) | None (manual) | STAR stories, CVs, interview prep |
| Pattern recognition | None | None | Automatic |
| Reminders | You set them | You set them | Built-in |
| Cost | Free | Free | Paid |
| Best for | Spreadsheet people | Narrative thinkers | Output-focused professionals |
The honest recommendation
If you've been using a spreadsheet and it's working, keep using it. Don't fix what isn't broken.
If you've tried a spreadsheet or brag doc and abandoned it -- and if you're being honest, most people have -- the friction was too high. Not because you're lazy, but because a blank spreadsheet or document requires decisions (what to write, how to structure it, how much detail) that a two-minute habit can't afford.
If you need your records to become something -- a CV, interview prep, a promotion case -- you need an output layer. Spreadsheets and brag docs store raw material. They don't transform it. When you need a STAR story the night before an interview, you're still staring at a list of bullet points trying to reconstruct context that faded months ago.
And if you're not sure which camp you're in, ask yourself one question: have you tried tracking your achievements before? If yes, what happened? The answer tells you more about what tool you need than any comparison table.
Whichever you pick, start this Friday. The approach matters less than the habit.