Delightful observation I keep making (exponentially more often?) in the last years:
Copy-pasting and adapting from my own (hand-written, if you will) software corpus is a _huge, reciprocal productivity boost_.
[x] I constantly build on and expand my own repertoire
[x] I understand (or at least once understood :)) everything I reuse
[x] Re-used code can have issues but I have full trust that it was written with best intent, to the best of my ability
[x] Reused code is improved/refined with each iteration
[x] Improved code goes around to be re-integrated with the source eventually
[x] I learn tremendously in the process
[x] I don't need to pay anyone for this
[x] No new datacenters need to be built for this
[x] This gets better every year
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