How do you do your foot care at home?

I do some walking for exercise.

As you walk, there are many steep inclines and declines, and as you do that, your toenails get a bit misaligned,

My heels are getting very stiff, and hard calluses are forming.

Of course, age probably plays a role to some extent as well.

Washing morning and evening every day isn't enough to solve the problem.

Is there anyone here who manages this at home?

I saw a foot care cream; would it be effective?

I wear New Balance; should I change my shoes?