Can't be that much accounting wise to handle, you'll have very few outgoings / costs and payment could be taken instantly using your phone and a mobile card reader. Just keep it simple for now, being part time you only want a few regulars to get you started.
I know a few people who decided to get a dog in lockdown and they keep going on about their dog feeling anxious now that they aren't working from home so much and also regret not socialising the dog more. So play those attributes in to your social media, how your dog walking service helps their pet feel happier and more relaxed around other dogs. Get some nice photos of the dogs playing in the countryside / park on Instagram etc.
Sounds like a nice lifestyle business though, maybe not so much in Winter
I know a few people who decided to get a dog in lockdown and they keep going on about their dog feeling anxious now that they aren't working from home so much and also regret not socialising the dog more. So play those attributes in to your social media, how your dog walking service helps their pet feel happier and more relaxed around other dogs. Get some nice photos of the dogs playing in the countryside / park on Instagram etc.
Sounds like a nice lifestyle business though, maybe not so much in Winter