a nuisance
余ったもの
something left over
余ること
to have a remainder in arithmetic
飲み残したもの
残り物になる
I do not know what to do with myself.
the condition of something becoming widespread
to forget to keep something which should have been kept
to be careless―let things take care of themselves―leave anything to chance
items that are disposed of after they have been used
差し引くこと
しだいにする
to do something little by little