Sometimes, repeating tasks will have something that is only applicable intermittently. For example, if I run weekly payroll but there are some weeks that require extra steps while others do not and it is not on a set schedule as to which weeks will require the extra steps - I want the checklist to be there for weeks that it's necessary, but I don't want to mark it as "done" when it's not necessary, I want to "skip" it or be able to cross it out for that week that it doesn't apply.