Those that are using TortioseGit UI click Right Mouse on the file (or folder) you want to ignore -> TortoiseGit -> Delete and add to ignore list, here you can choose to ignore all files of that type or this specific file -> dialog will pop out Click Ok and you should be done.

For those that are using UI to branch click Right Mouse on repository then Tortoise Git -> Create Branch...

New window will open -> Give branch a name -> Tick the box Switch to new branch (Chances are you want to start working with it after branching). -> Click OK and you should be done.

If a file is changed, but you don't like to commit it, set the file as "Assume unchanged"

Revert "Assume unchanged"

Need some steps:

The easy way

This won't work if there are merge commits in your selection

The advanced way

Start the rebase dialog: