Please let me know if you have any good ideas about how to spend one's time at home.
Could you tell me if you have any good ideas about what to do with all our time at home?
ーPlease let me know if you have any good ideas about how to spend one's time at home.
「家での過ごし方の良いアイデアがあれば教えてください。」
how to spend one's time at home で「家で時間を過ごす方法・家での時間の過ごし方」と言えます。
ーCould you tell me if you have any good ideas about what to do with all our time at home?
「家での有り余っている時間に何をすれば良いか、良いアイデアがあれば教えてもらえますか？」
what to do with all out time at home で「たくさんある時間、家で何をすれば良いか」のように言えます。
ご参考まで！
カナダ 
