Drive around the docks, around town, pull up to a crabbers house & ask him to sell you one, 9 times out of 10 they have some olds one laying around, if the trap is dirty(moss etc.) you need to power wash it, blue crabs are creatures of clean habitat contrary to popular belief, they will not enter a "dirty" trap, stone crabs like em dirty, next make sur the wire mesh is slightly bent in on the "eyes" of the trap, this allows the crab not to feel any resistance as they enter the trap, this is called tuning the trap, the crabber will explain if he's not being crabby, fresh fish makes the best bait, preferably menhaden"pogies" , chiken spoils t quick and blue crabs shy away from rotten bait, make sure you set sure trap right side up, in the early spring crabs are migrating from the deeper waters (ICW, ship channels etc.) into the warm waters of the bay, egg laden females happening right now, crabs that are pretty and blue have less meat in their body cavity than the ones that are grungy and barnacled, reason- the pretty blue one just shed their shell and have exhausted their natural fats as a mean to produce a new shell, concentrate right now on putting your traps in the sloughs until the water gets to hot, them move them deeper as summer progresses, if you put them in the ICW barges will roll em', hope this helps!