DFWVapor (locations in Frisco and Lewisville), Dragonfly E-Cigs has a location in Vista Ridge Mall in Lewisville, Vaporescence has locations in Denton, Fort Worth, Richardson. I'm sure there's more but I will say DFWVapor and Dragonfly are great. There's also a smaller B&M located here in Lewisville called Village e-cigs, not a bad place friendly people that work there. Although I've found everybody is friendly at these places.
Word of Warning (I suppose) DFWVapor has a HUGE selection of juices so be ready to take a little time trying to figure out what you want, about 300. Their
juice is ready to
vape right after purchase, Dragonfly you'll want to let it steep (sit) for a few days since they mix in house. Can't say if either is better...yet. Dragonfly has a lot bigger selection as far as PV's and delivery
devices go.