In both cases, I was hesitant about whether to include the definite articles and I erred on the side of including them - which was wrong.
#1 - I put "vamos a intercambiar las ideas" instead of just "ideas". I've found that in English we use the definite articles much less than in Spanish, so I think I need a refresher of when to use them and when to leave them out! Can you point me in the right direction?
#2 - And with "voy a salir de casa temprano" , I actually had put this correct answer first but then doubted myself and put "voy a salir temprano de la casa". Can you explain why this is wrong? Thanks!