Tow to overcome the limit of 6 weeks for Scheduled Workflow Rules?

We have a SWF that run everyday but the fields in the evaluation criteria may not change before 6 weeks.
If I disable and re-enable the swf, does this reset the week count, or is there another way to keep those projects in the execution list? (I don't see another solution other than put a dummy field in the evaluation formula that change every run...)
Thanks