Most websites make it extremely easy to clean up your URL. Almost all social media sites immediately allow you to personalize it so people can easily find you. I am no massive expert, but why Google+ does not do the same thing absolutely baffles me….
Go to this website:
http://gplus.to/
And follow the simple steps.
1) Go to your Google+ Profile and ONLY copy the #’s as seen below:

** Mine was a bit different **
https://plus.google.com/u/0/101644235748052060179/posts?hl=en
2) Choose a Nickname (I tend to keep it as simple as possible)
3) Input them into the fields and click ADD
** The nickname you chose COULD be taken, it will prompt you for another nickname if that is the case **
It’s that easy!
Granted, it could be much simpler….. But hey, there it is!
Keep in mind. This cleaned up URL ONLY redirects people to your Google+ Profile. It does not REPLACE the messy URL, it’s merely for aesthetic purposes when sending links to family, friends, followers, etc.