Do things (especially small tasks) as soon as you think of doing them. If another thing interrupts whatever you’re doing, you’ll probably think to do it and start doing it again shortly. If not, if it’s important enough, someone will remind you. Hopefully before anything bad happens.
Doing each thing in turn is best, all at once is the usual way.
My sister used to make a list everyday, which included all the incidentals, like making a list, so that she could be sure of checking at least one thing off the list.