Unfilth Your Habitat

Sometimes a well-mannered letter to your roommate won’t reduce it. In the one's cases, Unfilth Your Habitat serves because the bossy, snarky, expletive-crammed taskmaster you want you can be. This app is decidedly now no longer for kids--it makes use of profanity and crude jokes, mixed with timed challenges, to encourage the lazier among us to get off our rear ends and display a few responsibilities.

A 20/10 is 20 minutes of unfucking (cleaning, studying, what have you) followed by a 10-minute break. 45/15s are the same, only, you know, 45 and 15. The UfYH system is based on 20/10s because breaks are important. Edgy, R-rated, and wickedly funny, this may be what receives the empty pizza packing containers tossed out after each different strive has failed. You can download it on iOS or Android.

Best for: R-rated motivation

Cost: $0.99

Website: www.unfuckyourhabitat.com