craftgrrl | Working in a bead/craft store

I hope this is ok to post here...

I have decided that I must get a job in a bead shop for this summer and part time from September onwards when I start my Master's degree at uni. I don't think I've ever seen jobs in bead shops advertised anywhere so I reckon my best bet is to send my CV with a covering letter to all the bead shops in my city (I'm in London, UK) and hope for the best...

Does anyone here work in a bead shop or in a general craft store? Any good tips about things I should write on the covering letter? I have been crafty all my life and make my own jewellery these days. I have some customer service experience, and in a couple of months I will have a BA degree in media studies (which isn't really related to crafty things but transferable skills at least). It will probably be the case of being in the right place at the right time, so to speak, as most bead shops are small and don't have much staff...