If I am a sole proprietor and I go home between morning and evening meetings with clients, are both of those round trips considered commuting?

I own a growing pet sitting business, but I do not have a home office. If I have four clients - two in the morning and two in the evening - and I go home in the middle of the day between my second and third meeting, are those miles deductible? I understand that my mileage between clients is deductible, but that my first trip to my first client and my trip home from my last client are considered commuting and non-deductible. However, would a mid-day trip home be claimable? Would I be able to claim the miles from my second client to my third client and just deduct the miles it took to go home? Thank you.