Oops - I wrote a reply and then apparently clicked thank you!! So, I lost my message - but you got a thank you!! Haha!
Here goes - lets' see if I can write, and send, a reply more successfully this time (it's obviously too early to be doing this!)
I set sell orders as stop losses on my trades.
Costs depend upon the number of trades you do in a month (combined with all accounts you have with HL) so, less than 9 a month each trade incurs a charge of £11.95, between 10 & 19 the charge is £8.95 and over 20 the charge reduces to £5.95.
I hope that helps - here's their page on charges - I'm not on a commission!! Please shout if you have any other questions I might be able to answer.
Have a lovely Sunday.
Anne
www.hl.co.uk/shares/share-dealing/dealing-charges