So, not sure if this can truly be considered badass but I'm proud, nonetheless...
I got a fairly healthy Christmas bonus this year and used 99% of it to (almost) pay off my student loans. I succumbed to the "I deserve this" syndrome and took the extra 1% to treat myself to something at REI.
Well, short story short, after wandering around the store for an hour, I literally couldn't find anything that I felt was worthy of my money. So I ended up taking the extra 1% and putting that towards my student loans, as well.
Just feels so damn good to know how far I've come...a year ago I probably would have spent the money before I had it and now I can't even spend it when I'm trying to!