I have almost an hour window in the morning between hubby leaving for work meaning I have to be up lest I fall back to sleep and last child arriving so use that time to prep most of the stuff for the day in terms of food. Things like muffins and cookies and such are frozen so I set out what I am going to use. From a craft/activity standpoint I know what I am planning to do and usually have 3-4 options in my head and decide based on how active/docile/cooperative the group seems to be. Evenings are mostly for the background type stuff like laundry, cleaning, bookeeping. Long range planning is done on the weekend so I can find where stuff is I will need in the next little while so I can get to it easily which sometimes means cleaning out under the basement stairs and switching out bins of stuff.