http://trout.me.uk/lisp/ and http://trout.me.uk/gc/ are both "selected stuff I knew I'd have trouble finding again later" and I wish you great joy of them.

Still sad that John Shutt (creator of 'kernel lisp') passed away while I was still procrastinating dropping him an email - I think the only other 'thank you' I've most regretted not sending in time was to Terry Pratchett.