Clear Skype and QQ chat account details

hello,

When ever I login to either skype or qq both leave a lot of details on my pc. I have to go in and delete all by hand if I want to delete all account of such logins. Other wise were another to come to my pc at a later date they will see my skype username or qq id number. QQ has millions of users as does Skype. It would be good to be able to use ccleaner and with one click all evedience of account details are deleted from my pc.

for instance skype creates this unique dir specific to the person who logs in.

C:\Documents and Settings\bimbo\Application Data\Skype\myskypeidname

as for qq it creates the folder

C:\Documents and Settings\bimbo\Application Data\tencent\users\myqqnumberhere

qq also adds some files per unique login to

C:\Documents and Settings\bimbo\Application Data\tencent\logs\

C:\Documents and Settings\bimbo\Application Data\tencent\QQ\Misc\myqqnumberhere

please note nither skype or qq gives any option to delete these files from the gui of there software.

regards

Kenny