That's right. Everything matters to God. No matter how insignificant we may think it is, and maybe it really isn't a big deal. It still matters to God. Because we matter to Him.
For we are His workmanship, created in Christ Jesus for good works,
which God prepared beforehand that we should walk in them.
If I consider something a small detail, but don't handle it the best way I can, it may just turn into something much bigger than I thought it would. God has crafted me uniquely. His Best is that I am a person that draws others to me because of His craftsmanship. Like it or not, we are on display.
We hold a key that can unlock someones life. Practice the small encounters of differences with a response instead of a reaction. It will help you when the "Big Deal" does come your way. Every Kairos Moment comes with a different size window of opportunity.