@maisiemog - It's really interesting to hear how many someone enters and how many roughly they win, or to hear they at least have one win per month. That definitely inspires some hope!
I think at best I was entering perhaps 100 one month (this was a long time ago though) and then after that month my effort went down to maybe 40/50 per month. Can't say that I ever really won much of anything (aside from the year's supply of Oyster sauce!) At the moment, it's just the odd couple here and there but I'm thinking of getting back in to a routine of noting what I'm entering and dedicating a set time to it each morning.
What I find concerning is that some only let you know you've won via email, at which point you're required to accept the email/confirm. Obviously, entering so many comps means 'shed' loads of junk in your comps email addy, which I try to scan but still wonder if I ever miss anything (and that's from entering no where near as many comps as regular compers do!).