Adding a notes section to your page is a great way to add circumstantial information a neat way that won't clog up your references. To add notes to a page, open the page in Source editing. For the notes section at the base, put:
==Notes==
<references group="n" />
The fastest way to add notes is to go ahead and add notes as you would with references by clicking the Reference button in edit mode. Then, in Source edit, change the reference tag <ref> to <ref group="n">.
If you have a lot of them, it's easier to just copy past.