There are a lot of moths about now due to the warm weather, but these aren't going to munch away at your clothes.
http://www.kendall-bioresearch.co.uk/domestmot h.htm#moth1ctrl
The link above will show you what to look for and how to take precautions so you don't attract the real clothes eaters. I must admit for years moth balls were freely used by our parents, but there is a very large warning NOT to use them as they are extremely toxic.
Use shaneystar's lavender as my mum always used these bags - and the smell is delicious.