Why do it if it doesn't seem to matter?

In life you find yourself at times,  wandering if what you are doing or could do will really matter in the end. It may not seem to matter but it for sure won't matter if you don't. For instance you may run across someone who's circumstances have devastated them and they need more help then you can give them. Although you can only help them a little bit, it will matter to them. You can't solve all their problems but you can make things a little better. You may not think it matters if you just pick up a piece of trash as you walk by it at a park and put it in a trash can. It doesn't sound like much but if everyone else would pick up one piece of trash while at the park, it would keep it clean. Everything you do matters to someone even if it only matters to you. Now when you have more to do on your "to-do list" then you can do that's when if it doesn't matter then don't do it. Because not stressing over things that don't matter in those circumstances is what matters most.