He helped me with the housework today.
He did some chores for me today.
Today, he did the dishes so I didn't have to.
家事 = housework / chores
手伝ってくれる = help out, help (with), do for
(someone) helped (me) out
(someone) helped (me) with
(someone) did something for (me)
皿を洗う = wash the dishes
He did the shopping for me, so now I don't have to.