\renewcommand{\thefootnote}{\arabic{footnote}}Arabic numerals, e.g., 1, 2, 3...
\renewcommand{\thefootnote}{\roman{footnote}}Roman numerals (lowercase), e.g., i, ii,...
\renewcommand{\thefootnote}{\Roman{footnote}}Roman numerals (uppercase), e.g., I, II, ...
\renewcommand{\thefootnote}{\alph{footnote}}Alphabetic (lowercase), e.g., a, b...
\renewcommand{\thefootnote}{\Alph{footnote}}Alphabetic (uppercase), e.g., A, ...
\renewcommand{\thefootnote}{\fnsymbol{footnote}}A sequence of nine symbols,
Changed mine to alphabets. Looks much neater now.