My first just-for-me splurge with money from my Kindle sales: a copy of Rosetta Stone for Latin American Spanish. Is it too late in life to master another language? It's not too late to try. That first royalty check hasn't arrived yet, but it should be here soon.
Meanwhile, the big question is how to maintain a level of sales that had been so strong for a month or two and then dropped off? Perhaps one way is to keep new products coming. At the moment there are three in the pipeline--two novels and a short e-book. Of course, no two of my projects have any logical link, which goes against what everyone seems to think a writer should do. You take someone like Sue Grafton. She has a whole alphabet full of novels tightly linked with the same main character. And Janet Evanovich. And Ed McBain, rest his soul, writing 87th Precinct novels by the dozens.
Me? No sequels here. ADD, maybe.
Do any other writers have this problem, that your head gets turned by every new shiny object of an idea?
Oh wait, I was talking about sales. If you haven't tried Twitter, give it a go. It's time-consuming but free, and I think the time has been well spent.