I don't wait around for them to forget to do something. In the beginning, I tell them what to do. I'll say: "I'm making dinner. Ya'll set the table." Or, "We're leaving in 10 minutes. Everyone should be dressed to the shoes with teeth brushed." Or, "Dinner's over now. Let's do our table chores."
I do this for months. These are not new things. We always do these things. It's just that now I'm spelling everything out. I'm not expecting them to think of any of it on their own. Expecting it just gives me opportunity to be frustrated and criticize my precious kids.
After several months of this, I switch to asking questions. "I'm cooking dinner. What do you all need to do, so we can eat?", "Now that your laundry is dry, what should you do next?", "What are your chores today? What do you need to do next?"
My life has gotten easier, not harder. Life runs more smoothly. And my kids have many opportunities to be praised, not criticized. What a concept!