User blog comment:El Gordo/Catching a glowing snail./@comment-24021074-20140317110749

Some pillars are useful, or not flat surface, and two layers of ground also helps. (I mean like, floating ground layer) Chlorophyte Bullets can kill monsters off screen and doesn't harm Harmless NPC's (atleast if they are not in way...). Rod of Discord is also pretty useful.

Also don't move too fast, a little bit faster than normal running for example is good. (If going too fast monsters will not spawn so often)