^^This is what I have always done. Find your weak points.. and make it so they aren't your weak points anymore.
For some reason I've always made my accessory lift rep scheme kind of the same as the main lift scheme as well. I don't know why, but for me it has been working quite well.
Say it's "5 rep bench day" - I'll do those, then have my accessory lifts set up in a circuit for 10 reps, then on the last set I do as many as possible. I like circuits, because I work out in an empty gym.
"3 rep bench day" - Accessory 8 reps, last set AMAP.
"1 rep bench day" - Accessory 6 reps, last set AMAP.
I'm watching all of my accessory lifts go up week from week as well.
Then I do the deload week. Don't ask me why I set it up that way, but I really enjoy the feeling of the last "as many reps as possible with good form" set(s) this way more than just a certain number of reps.