Put money in my child's piggy bank everyday

There are times just about every month that my hubby and I get down to having no money and we gather what change we have and use it for whatever we need. From now on I want to make sure I put something, even if its just a quarter in Kenneth’s piggy bank each day and try for a dollar when I actually work and make some tips. We need to open him an account somewhere so he can go and deposit money in it ever week or so and that way he can understand that toys actually cost money.