1. Crusty toothpaste around the rim of the tube

Wordpress Wordpress

2. Finger prints on a touch screen

SurfPK SurfPK

3. Crumbs in the keyboard

Flickr Flickr

4. That unnatural smell in the fridge

DailyEdge.ie DailyEdge.ie

5. Foreign bodies in the butter

6. Tea/Coffee watermarks on the table

DailyEdge.ie DailyEdge.ie

7. Unidentified sticky/greasy substances on the remote

Flickr Flickr

8. Dishes stacked on top of the dishwasher/beside the sink

Shutterstock Shutterstock

9. A wet towel left in a heap on the radiator

Flickr Flickr

10. Or on the bed

Wikimedia Commons Wikimedia Commons

11. Hair in the bath/shower

Blogspot Blogspot

12. A toilet that hasn’t been flushed

Flickr Flickr

Now tell us, which household horrors keep you up cleaning until the wee hours?

More: 9 of the worst smells found in every Irish household>

Read: 8 treacherous ways your housemates can ruin your day>