I'd like to help the Liberal Democrats, but I lead a very busy life. Would it involve a big commitment of time?

No.

Many supporters help us for just an hour or so every couple of months, delivering 100 or so newsletters near their home, helping out at a sale or attending a social evening.
Others help by making a small financial contribution from time to time, to help fund our newsletters.
The Liberal Democrats are kept going by individuals like yourself, not by big business or trade unions, and we appreciate all our supporters' copntribution, big or small.