When is it time to move on?

[stuveltje]

i keep my eye on all my old sites, yep even those from 4 years ago, if an sponsor dont convert, well i change them , i always worked that way, and if i was a bit wiser before i started this bizz then i should know which domains i have and which sites, so ones in awhile i find out i have some sites with dead sponsors or no converting sponsors for a long time........like today, realy sometimes i can slap myself, i am to sloppy in this bizz............