When I crochet something, I always end up with gaps in between my stitches, leading to a sort of open-weave effect. That's fine for baggy cardigans and the like, but for tops, dresses, skirts, etc, I'd rather it not be so see-through.
I've seen patterns for sale with example pictures that don't have those gaps, but I'm broke, so I haven't actually bought them to see if the pattern says anything about how I might achieve that.
Is there a certain stitch pattern/type that works? Smaller hook? ... lining? And if it is a matter of lining it, how would you sew a lining into crochet? Would the gaps in the stitches cause a problem?