I've been developing my relationship with a new-ish client that hired me initially for blogging, and have also been helping out with marketing strategy & other things, too. We're planning to work together on various other writing projects going forward, in addition to regular blog posts.
I suggested to them that we establish on a monthly basis exactly what work I'll accomplish the following month, and quote per-projects rates for everything, which they said sounded good.
I'm not sure if this is the best arrangement, but I mainly wanted to avoid invoicing hourly, and for us to both know what to expect for each invoice.
I'd love to know exactly how other freelancers invoice for this type of client. For example... Do you come up with per-project quotes for every new piece, or do you agree on some kind of standard pricing tier for everything (like by word or something)? How often do you invoice? How does your process go for assigning work, proposing quotes, and working out an agreement? How often do you do these things? When it comes to invoicing, how do you combine regular work (like a regular blogging schedule) with periodic one-off projects (like press releases or whatever)?
Please share your wisdom! 🙂