Thanks a ton for the advice and welcome, everyone! I really, really appreciate it.
I water just about all my plants whenever the top inch or so of soil dries out. Which is about once a week for the indoor ones. I'll definitely cut back on these two at least. Though I do have two other aloe plants - one inside, one outside - and both of which are doing great visually. Should I cut back on watering all of them (the aloes)?
I'll move the Coleus closer to the window.
And no worries about A/C. It doesn't stay hot here for long enough to really merit installing A/C units, so most Swiss don't have them (if you're wondering why I'm not on a Swiss gardening forum instead, it's because I'm an American expat).
I'll look into fertilizer for the Coleus. And I probably sound like such a newb, but what does 'leggy' mean? I assume it means it's growing out and 'upwards' too much and not filling out?