what jay said.

plus i also like to prepend descriptive prefixes.


clean_marine_mesh
clean_marine_rig
delete_marine_rigTest


delete or sometimes del lets me know right away if its a garbage file.

the first prefix describes th file state, the last file type.
clean/mesh
clean/rig
as with my naming convention in maya as well,
R_armBicept_JNT
R_arm_PVCTR
right arm bicept joint
right arm pole vector
and in scenes i use del_testLocator
so rightaway if i see this locator somewhere in my scene, i already know its garbage and was used for some kind of testing purpose. in case i forgot it in my scene.