acid.... though i only did it once (its not at all common in my neck 'a tha woods) was amazing i only took one tab and it was $7 but it had me tripping hard for 10-12 hrs and i was still a bit 'off' the next day, but it's a much "lighter" trip than mushrooms i must say... acid is definately more visual and bright fun playfull, but it does not pack the body high that mushrooms do. mushrooms are a more distribruted all around trip you feel so much more natural on mushies but acid makes you a bit more floaty like your a level above. really its all about preferance