PC, free

Tired of Twitter? Fed up with Facebook? Surfing the net too dull in the dog days of August? Jigzone.com is the bored office worker’s new best friend - a treasure trove of jigsaw puzzles that vary in difficulty and how long they take to complete, plus there’s the option to create personalised puzzles using your own digital photos. Okay, so jigsaws might not float everyone’s boat but for free kicks, this is hard to beat.