New-ish to GTD (I've been familiar with it for half a decade or more, but just now trying to make it all happen). Going on the core premise that there's no need to have the same thought twice, and that you should capture anything that has your attention.... What's the threshold for "has your attention"? There's a relatively minor (less than $100) technology purchase that I've thought about and consciously rejected for a number of reasons. But every now and then my brain says "hey, wouldn't it be nice if we had a (the previously rejected technology item)". It's not something I need, or even particularly want. There are better uses of the money it would cost. Do I just let those thoughts drift in and drift back out, as long as they drift back out in a reasonable timeframe? Or do I capture and reconsider whenever I have the thought?