Well bro, it is the alchemy loop. Basically you need to wear 3 or 4 items enchanted with the basic fortify alchemy; 25% each one of them means 100% by using 4 items ( circlet, gloves, ring and necklace ); while wearing those items, you need about 4 - 5 restoration ingredients ( alecean longfin + salt pile ) and once you finish the loop, you create a fortify enchanting potion. You are done. Then use that fortify enchanting potion to enchant one ring with fortify smithing. Depending on how high your fortify enchanting potion is, you will fortify smithing your ring more or less to the level that you want. You need to try and see by yourself how much powerful you want your fortify enchanting potion will be.
At the end you will end up having ONLY one item ( in this case the ring ) with fortify smithing and is the only item you will wear when smithing your weapons / armors to increase damage.
Before I found out about this way to simplify my work, I was creating fortify smithing potions which is the other way around but as I said, I always try to simplify my work and honestly, nothing is faster than that, because you won’t need anymore to create fortify smithing potions at all but only wearing your fortify smithing ring to increase damage on your weapon / armors.
Last but not the least, some people don’t like to do that. They consider that cheating and they do believe it is not fun anymore to play the game while your weapon have, let’ say : 600 damage ... but again, it is a matter of choice and as I said before, Alchemy, Enchanting and Smithing are at your disposal to use them as you please. Increasing the damage of your weapon is allowed in Skyrim, one or another way so basically you are using what Bethesda allowed you to use and if you play your game in master mode, then you balance out. Just my 2 cents ...