Exercise can be involved in the many activities we do. Like you mentioned walking in a large super market. The sad thing, well at least here a lot of people order thier groceries now. I don't currently have a work out regime but just doing my two work jobs gets me plenty of it. With it being cold here I often run to getting where I need to be when getting out of car. I should count my steps because I'm sure I rack up a lot especially doing my delivery job. Take care :)