Like several of my writing friends, I find that I sell roughly one story for every ten submissions. The more I submit, the more I sell. The secret to steady sales is lots and lots of submissions. As soon as one market rejects a story, I send it off elsewhere - in theory. If they buy it, they usually want it exclusive for a while, typically 90 days. I wait until that's over, and I start trying to sell reprint rights - in theory.
Last year I aimed to send off 8 submissions a month, which would come to 96 in the year. I managed 50.
This year I decided to aim for two a week. And as of today, I'm slightly ahead! In 13 weeks, I've sent off 27 submissions.
I think two things are helping. One is the shorter time scale. Last year I kept getting to the 29th of the month with only two submissions sent out. Then I'd try to catch up, of course, but usually it was too late and I did too little.
New Year's Day was a Friday, so my submission weeks end on a Thursday. This year I get to Wednesday and realise I have to catch up - and that's only two submissions, which is much easier. The other is that I have every Thursday on the wall calendar marked with the number of submissions I'm supposed to have made so far, so I can see how much I've fallen behind. That's a great motivator to NOT fall behind.
39 weeks to go.