I take the kids out daily so honestly some days they don't even know I went to the store not that I intentionally don't tell them just forget to mention it. We do school runs, go to the zoo, swimming, and such this morning I only had two kids so I did my $330 dollar grocery shop at superstore. You know the parents you have would they have a problem with this? I think I've said things along the lines of we will be stopping at the superstore to pick a few things up occasionally no one ever had a problem with that. As to the bank I would probably just say the day of I need to run to the bank are you okay with that. It also depends on your group of kids I'm not to worried with mine they listen and the older ones are great helpers.