Beamer bullets without itemize

I've been using Beamer for years. On almost every slide I have a \begin{itemize} and an \end{itemize} and all the \item Blah points in between. If there is nesting I need to carefully utilise the same constructs again:

\begin{itemize}\item One  \begin{itemize}  \item One and a Half  \end{itemize}\item Two\end{itemize}

It occurs to me I could instead use a simpler command which might just insert a bullet point with an optional preceding indent. The output of the code above could be obtained using something like:

\i0 One\i1 One and a Half\i0 Two

I imagine I might easily create such a simple command, perhaps using \bullet, but I would rather start by asking: is there something like this already; and has anyone used this idiom for long enough to comment on its pros and cons.