Most of us earn a living, live and die here. So, the effects on us due to a depreciating RM, or put it another way, the appreciation of foreign currencies, is imported inflation.
Prudence is indeed a good virtue especially in the current difficult times. Of course, earn more if you can but if you can't than I guess you just have to spend less and in order of priorities.
As for me I always live a little bit below my means. Save for the rainy days, you know.
" In the land of the blind the one-eyed-jack is king."