What/where should I buy for my bike's new inner tubes and should I Slime my bike tires?

support a local bike shop! tubes shouldn't cost you more than 5 dollrs a piece anyway. slime is heavy and i wouldn't recomend it. is this for a mountain bike or a road bike? if you live in an area with a lot of goat heads or other thorns and you get a lot of flats as a result then I would maybe recommend the slime or a thorn resistant tube (with will cost more like 10 dollars) but otherwise you are fine