Bausch & Lomb ReNu 360ml (6 week)

You get: 1 x 360ml bottle
Should last: 1.5 months
Cost per month: £8.33
Suitable for: soft lenses

And the gold medal goes to... Bausch & Lomb ReNu Multi-purpose solution! This is the first and most widely used one-bottle contact lens care system in the world. You can use it to clean, store and rinse your lovely lenses. Supplied here, in a sturdy 360ml bottle, it loosens and removes the buildup of film, deposits, and debris from your soft contact lenses. It also destroys the evil bugs that will lurk on your lenses, given half a chance. So, bye bye bugs... and hello to clean, comfy vision!