I'm starting work in a week so Honey will have to be home alone for about 7 hours, besides 2 times a week where a very sweet dog walker will come and take her out for a walk. I just feel like such a bad mommy

I'm so sad to think about her being all alone.
What can I do to make it more "fun" for her? Of course she has her water, pee pads and plenty of toys but is there anything else I can do?
Please help med feel better because right now I really feel bad.