What brand would I use to reseal my driveway and where on earth could I purchase it?
Answers: No offense to you or the other answers, but your Q dictates that WE "assume" what the drive material is.
While I cannot imagine seal any drive, it would matter, in this armour, had you offered what material. Obviously one would not use black top sealer, over a concrete drive, or vice versa.
Also lacking knowing where you are, any suggestion of a particular store, might not work for you.
Just my two "sense"
Go to Lowes or Home Depot and buy blacktop sealer and a stiff broom to apply it. Latexite Optimum.Find it online for a roll of stores who carry it.I had excellent results beside this product