As Vermont municipalities aim to pinch pennies this March Town Meeting season, a rising number are seeking to pull in more spare change by piggybacking on state taxes and proposing their own 1% local charges on rooms, meals, alcohol and sales. Voters in almost 20 cities and towns will be asked to join the nearly 40 now accessing some combination of such fees, according to a VTDigger survey that shows ballot items in Bolton, Bristol, Castleton, Chester, Hardwick, Londonderry, Mendon, Milton,