since your local username on your laptop frequently does not match the server's username, you can set this in the ~/.subversion/servers file
Add the server to the [groups] section with a name, then add a section with that name and provide a username.
for example, for a login like [email protected] this is what your config would look like:
[groups]
exampleserver = svn.example.com
[exampleserver]
username = me