5. Proporta Microbial Case

For the majority of us, the most germ-ridden things we come into contact with on a daily basis are computer keyboards and phones. The average toilet seat for example, has around 49 germs per square inch. The average mobile phone? Over 25,000.

The case has has an anti-microbial agent that guards against 99% of germs. Not only that, the silicone case is tough, comfortable and grippy, so it won't go slipping out of your clean, microbe free hands.

Price: £19 | BuyProporta Microbial Case for iPhone 4s