帮助改善一篇英文文章的语法和流畅性。
原始文章：“I went to the store to buy milk. After that, I went back to my house and I watched TV.”
"I went to the store and bought milk. Then, I returned home and watched TV." 

改进后的句子更加流畅，其中使用了并列句来减少冗余，还使用了副词 "then" 来更好地表示两个事件之间的关系。