He lives in a small house in the outskirts of town.
The princess was wearing a dress that doesn't suit the season.
I bought some ice cream that had, "If you hit, you get another" written on them, but they were all misses.
The kanji 外 alone means "outside." This word means extremity. How can you remember this? Just think of the れ as a "ray of sunshine." Where you are, in the extremity of space, even the れs of the sun cannot be seen. So, when 外 is combined with れ just think of this.
Let's continue the previous story: You're off in the extremity of space and your friend is running low on Vitamin D. He has (はず) to get some sun れs on his skin! How's that supposed to happen with those spacesuits on, though?