Since years, I didn't have a good way to train my drawing skills on a daily basis, because I couldn't find a motivating exercise that suit my needs...
And practising regularly is the best way I know to get better at drawing ;)
But I recently finally find a way ! Inspired by this video by Matt Kohr, and with the great resource I finally find here : http://artists.pixelovely.com/, I can know take half an hour daily to train myself !
But because I work digitally (with the great Krita software), one last thing was missing : a template file to quickly get started on the morning.
So, I made them, and maybe your are interested in the method and the resource, so you can download them here. (Creative Commons Zero License)
They are very simple : one is an 8192x8192px image which gives you 64 1024x1024px slots for drawing (or 64 poses during 1 minutes ), and one is a 4096x4096px image which gives you 16 1024x1024px slots for a shorter session, or to work with a less powerful computer.
To install them, unzip, and paste the folder ( templates ) into your Krita user preference directory ( example on linux : ~/.kde4/share/apps/krita/ ) You can also open your preference directory inside Krita : Edit > Ressources > Open Resources Folder , don't forget to restart Krita after.
How to use
Pick a pen brush (or another brush you want to practice with), zoom to the first slot, start a drawing session on one of those websites : http://artists.pixelovely.com/ or http://www.posemaniacs.com/, and stop when the session is finished or when every slot is filled. You can draw out of the lines ;)