@mazda:
I feel the same way about my car even though theres probably no way id be able to sell it at like 190k mi. I havent done any aeromods yet but grilleblocks are definitely easy/effective/temporary enough. As for your fog lights, your regular headlights are probably plenty bright, so if you took the fog light bulbs out, you could either make something that fits in that socket, or hopefully you could take the socket out to put something you're willing to screw into back there. As taco said, some good tape is probably your friend here.
Also, take notice of places where existing screws/bolts are and use those - when i had my corolla and deleted its mudflaps, i was poised to make rear wheel skirts because of the existing holes i could bolt into. There mmay be options like that up front on that mazda you could take advantage of w/o drilling any holes.
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