What is the best way to get a temporary Eazy-tag for Houston?
Contact the Harris County Toll Road Association (Harris County Toll Road Authority) and see if they offer such a thing. I doubt they do have an offering that would make financial sense for such a short period. There is, if I recall correctly, a $15 fee for the toll tag (which does not apply to tolls, but is simply to purchase the tag), and a minimum $40 toll purchase. However, it may be that you'll be driving enough to make that $55 investment save you enough time to make it worthwhile. HCTRA will know the costs for certain, and if there are any special programs available.