As salaamu Alaykum,
Here's a little daily routine for reviewing Juz Amma that my older children and I have started and it is working very well (at the present..lol) masha Allah.
We read/recite from the mushaf using the following plan:
After Fajr or sometime in the morning
I used to tell my kids (and myself) that we were going to review juz amma every day, but until I set up this schedule we neglected to do it on a regular basis. I think they (and sometimes myself unfortunately) were getting unmotivated and restless reviewing the juz in one sitting.