Plugin to redirect page permalinks?

I can’t seem to find this.

My WordPress site depends more on pages than posts. At times I’d like to change one of the page slugs without breaking any external links to it. However, all the plugins I’ve found seem to be for posts. I’d rather not use .htaccess because after a while it would get messy and I’m pretty lousy at that (I broke my site once) though if there was a way to manage that I might consider.

Also any of those plugins that search based on the words in the slug won’t work because of the way the link is structured (it’s a rather large specialty site so it needs to be that way to keep it in order)

Any suggestions? It’s not really a huge deal (I can still rename the page without messing with the links) but it’d be appreciated.