Not three seconds. Twenty seconds. But "20-second rule" doesn't sound as catchy. Here's the rule: if an AI conversation taught me something I'll care about next week, I export it before closing the tab. Takes about 20 seconds with XWX AI Chat Exporter. Click, pick PDF, done. That's it. That's the whole system. Why 20 Seconds Matters Twenty seconds is short enough that there's no excuse not to do it. It's shorter than finding your keys. It's shorter than most people's TikTok scroll. But it's long enough to capture something that might save you hours later. I've lost count of how many times I've revisited an exported conversation and thought: "if I hadn't saved this, I'd be re-deriving this from scratch right now." Every single time, that 20-second investment paid for itself 100x over. What Gets Exported Not everything. I'm not building an archive of "what's the weather in Tokyo" queries. The filter is simple: did this conversation change how I think about something? If yes → export. If no → close the tab.…