I haven't taken LSD in a number of years, but I still feel the effects. I must say, I did take quite above the normal dosage of say... a wooly mamoth, however, I was severly depressed as a child and starting having difficulty dealing with society going into teenage years. I was introduced to it, mind you recreationally by a friend, when I was 16. I had a great time, but by the time I was 18, I was withdrawing once again. I began to dabble in solo dosing, growing a larger and larger tolerance for the drug, but understanding the power of how it was changing me. Mind you, I realize that I probably have severe brain damage, but those cells where "wired" incorrectly to begin with. I gave myself an opportunity to experiene life in ways, completely new and refreshing. It made me relearn many things about what I thought I knew was correct, but always had trouble accepting. Every time I dosed, I saw everyday things differently, things were clearer, easier to cope with, and people close to me started to notice a change as well. My academics went through the roof as well as my self-esteem. I no longer feared anything and craved learning about everything I could get my hands on. I was like a newborn child soaking up the worlds offerings around me.
I ended up finishing school with a masters in computer science and a minor in theoretical physics. I often run into people I have not seen since before my experiences, and most of them don't understand what happened, how I became less "impressionable".

The dramatic changes in my personality are not uncommon, its actually fairly well documented that the experiments that the us government did on soldiers with LSD and BZ in the 40's, 50's, and 60's showed an overall better wellness of being and an average increase of IQ to be 15%.

like the poster before me, its sounds weird but, I for one, am a better person for it.