Last semester, one of my roommates made the most out-of-this-world scones. We were all in heaven until the fried smell of fatty oil was still hanging around our small apartment the next day. Candles and cleaners didn’t seem to do the trick, so I sprinkled a generous amount (several tablespoons) of ground cinnamon (yeah just that “normal kind” you buy and put with sugar on toast or in your oatmeal) on a cookie sheet. Then, I put the cookie sheet in the oven at 325 degrees Fahrenheit until I couldn’t smell the cinnamon anymore (about 15 to 20 minutes). I did this a couple times and my apartment was back to normal….though I was cravin’ homemade cinnamon rolls….
I recommend doing this whenever you have a bad smell in your apartment or right before you have friends over. It’s super easy and cheap and smells soooooo good. I think guys should be required to do this regularly. I mean, their spaces always smell kind of raunchy and it’s not like this is a flowery weird smell or anything. Just a shout out suggestion 
