One long term sponsor company (they have been around for at least 6 years) has a cycle: You sell well int he last couple of days for the month, again for the first couple of days of the month, and the rest of the month is absolutely sucks ass.
Every month since, well, I won't say how long, that would give it all away.
I don't actively promote them anymore, if I find stuff when cleaning it gets removed.
The games that are played.
Alex