http://www.ehow.com/how_4518577_use-a-lotallotalot.html
The adverb "lot" means to a very great degree or extent. This is also usually used in the form of "a lot". Example I feel a lot better after eating the chicken soup.
The verb "allot" means to parcel out or distribute. Example You need to allot each speaker enough time to discuss their topics.
"Alot" does not exist and should never be found in your writing.