Half-posts, character limits

I frequently find myself wanting to post some thought or something, but it isn't nearly long enough for a full post on RI or I don't have the time, energy, or enthusiasm to post about it. This could be helped if I do "half-posts," yet I don't want to clutter up the posts on here. I've thought about using another platform to publish these smaller thoughts, however, I have yet to find one I like.