Hey there, peppermint oil is best and you buy it from any shop or website that sells aromatherapy oils. Neals Yard, Napiers or the Floatarium in the Burgh all sell it, but you may be able to get it cheaper from a chemist, I think boots sell it. and it's not as though you need "organic" or "cold pressed". You want to get rid of the vermin not invite them in and spoil them. I buy it from this website
http://www.revital.co.uk/
If you can find gaps where 'it' or 'they' are coming in, block them with wire wool and surround in the mint oil. Smells lovely! much nicer than dead rotting mouse.
Nothing beats cats at getting rid of mice, although my cat proudly brings them to bed....... not so great![/url]



