Do you use tabbed browsing on the iPad? If you don't, you should, and it's easy! Just touch the plus button underneath the iPad's search field to open a new tab, and then you can browse to a different webpage without having to navigate away from your original one.
Another great way to use iPad tabs is to press and hold a link on a page (rather than just tapping it to open it). That'll give you a contextual menu, from which you can pick Open in New Tab.
As you can see, that menu has some other cool choices. I like using Add to Reading List from here sometimes, too.
But what if you close a tab (or a whole bunch of them), and you didn't mean to? Instead of going back through your history to try to find what you've lost, you can just press and hold on that same plus button I mentioned above, and it'll show you your recently closed tabs.
Pick one to reopen, and you're back in business! If what you're doing on your iPad is business, that is.