These days, you absolutely must know how to delete the browsing history on your Web browser. This can be especially vital at work where you# not want your boss to
If you want Internet Explorer to delete your browsing history every time you close it, select the Delete browsing history on exit check box before you click Delete.
You're prob fine with one
since you are on top of it. They will let you know if you need a second one. Some cats are fine sharing a clean box. Mine are :) And I'm very thankful.
Just watch your older cat as the youngin' grows up. That's when you'll see a if there is going to be one. If you have a big enough space and can do a second box, it does not hurt to add one. Mine were always using the same box, so I got rid of the extra one.