1) Raid a couple of worlds to get multiple traps. Even a small world's Temple will have plenty of Spiky Ball traps, but Spear and Flame traps tend to be in short supply.
2) Put an Actuator on the trap. Activate the trap ONE TIME which actuates it into the background. Then use the wrench and pop the Actuator off again and leave it off.
3) Whatever area you stand on, make a 2-wide hole in the bottom with a couple of platforms so you can shoot down through it. Most enemies either won't be able to shoot back very accurately or (like Mourning Woods) they have shots that go through blocks anyway.