Wifi boosters

[Tak]

Basically I need to know what I'm looking for; something cheap, simple and reliable - if I can double the range then I'll be able to use my wifi in the shed which would be perfect (long term plans :p ) but even an extra 20-30foot would help cover the whole flat.

[Knipples]

Got my brother/parents the Huawei wifi repeater from amazon (it's £23) last year, and it works a treat.

Parents live in a big 4 bedroomed house, and it now covers their house easily.