Lists

Here is what I love about lists:

-They are very quick to write
-You can use them for many different things (both practical and impractical)
-You can use bullet points
-And sub-bullet points
-You can put really big important things on them
-You can put silly, quick, mundane chores on them
-It is very satisfying to cross things off, no matter how easy or difficult it was to actually DO the thing
-You can use them to make other people (eg the children you nanny for) do stuff