Small annoyances add up.
We love that sentence. It usually means someone has noticed a small everyday annoyance that everyone else has simply learned to live with. Why should you fight with a slippery bottle in the middle of a shower? Why does washing a dog feel like it takes three hands? Why do we keep doing the same awkward little things just because no one has bothered to rethink them? None of these are huge problems. They just eat up ten seconds and a little patience, over and over again.
Why is this still such a pain?