Use a citrus-based wash; such as Chemical Guys citrus wash and gloss, or citrus red, or citrus wash daily.
Or you can always go through the APC route; dilute 3:1, spray on, agitate it a tiny bit, and rinse off.
Then just hose off your car, and see for any signs of sheeting or beading. If there is any, then you still got some LSP left.