Something that might come in handy if you are short of the right word is the disgo USB drive, which now comes pre-loaded with a digital version of the Concise Oxford English Dictionary (COED).
It's the first time a digital version of the COED has been included on a USB key. It means you'll always have a dictionary to hand, plus games intended to improve your spelling skills, such as Anagram and Conundrum. You can also check your grammar against the Good English Guide.
However, there is one drawback - it's only a 30-day free trial, but can be converted to a permanent license for £14.99. The drives vary in price dependent on model and capacity, starting at £19.99.