I thought I should start a thread where you can post the mistake(s) and/or problem(s) that occurred which caused you to look into Trouble Free Pool Care.
An example would be mine. Mine was nothing compared to what others have. My issue was that we would put in two of the standard 2.5 gallon pool chlorine jugs to four of those jugs in our pool every week, just to have algae growing by the end of the week. We were fortunate enough to just have basic mustard algae which can be easily brushed off.
Every week we would raise the FC to 50-100 ppm, then get in the pool the following day, or sometimes even later that day. We had no idea about any of this. I should mention that we also stored our vented chlorine containers in direct sunlight all day every day. We also poured the chlorine in the pool in full sunlight, also. We occasionally would use a single trichlor tablet and rarely a bag of dichlor shock.
It was as simple as raising the CYA level for me. I was originally given this advice by a helpful employee at Ace Hardware before discovering TFP. My local Ace has never recommended for me to buy an expensive product like I find at Leslies. The employee at Ace even had me buy the cheapest tablet there without me asking.