- (English, colloq.) clipping of register; a private record of small, returning matters one means not to forget.
- (English) one that gives the gist; an agent or application that distils, from the great mass of one’s small affairs, the matter presently at hand. Cf. analyser.
- (Dutch) gisteren — yesterday; the day by which, by rights, all this ought already to have been done.
Topic, not task.
You don’t think "renew the bike-insurance review". You think "insurance time". Gister meets you at that altitude — one card per topic, the items inside dealt with together.