A cheap rocket blower can be worse than not cleaning at all. it It inhales air from your environment -, which can be dustier than your sensor. If you use one, make sure to get a high-quality model which includes a filter.
I use Pec Pad (pecpads) and Eclipse cleaning solution, with a sensor swipe. This link has all of these products in the search. It works well to remove spots.
A tip -: take a picture of a clear blue sky at f/22 to identify all your dust spots.