My husband and I have always paid tithing, which for us is 10 % of our income. We have often seen direct blessings from this. Others might question if the blessings we really got were from tithing, but all I can say is that when the blessing comes, we both instinctively know that it was from paying tithing. The Lord said in Malachi, "Prove me". Basically, He was saying that if you don't believe you will get blessings from paying tithing, then test it out for yourself and see.
So today we got a blessing from paying tithing. Before we took my daughter to Utah, we started having problems with our van. Whenever we went to start it, it wasn't turning over. We nursed it along for weeks, and were able to get it started each time that we needed it. I have to admit that I prayed for it to work for us while we were on our trip to Utah. The Lord did bless us, and it didn't break down on us while we were on the trip. But this past week or so since we came home, we have been having more and more trouble with it. I was really concerned that I would get stuck at seminary and not be able to get home to get my boys off to school on time. I just kept praying for it to keep working for as long as I needed. My husband's motorcycle was in the shop getting a few minor things repaired (like a broken lock on the side bag), so he couldn't drive that to work. We only had one registered vehicle besides the van. I really needed that van to work until the motorcycle was fixed. And sure enough, as soon as he got the motorcycle back, the van conked out. Neither one of us could start it.
Today my husband decided to look at it himself and see if perhaps he could fix the starter. As he was tinkering around, he noticed that one bolt was loose. He suddenly had the thought that tightening it might fix the starter problem. He had to do a little work, including taking out the battery, but he did, and tightened up the bolt. He put everything back together, and the car started without a problem! The problem is totally fixed!!
I'm here to tell you that this was a direct blessing from paying tithing. With two missionaries in the field, we really couldn't afford to have a car repair. The Lord is aware of our needs, and that we are paying for two missionaries, and He blessed us to fix the car without a large repair bill!