I'm with Chuffer on using Meguires - I use the Ultimate Paste Wax now, which I find last very well in wet weather and gives a nice shine. Follow the instructions, including adding a second coat. I occasionally use a buffer, (a Meguires cordless unit) if I remember to charge the battery! I put a micro fibre bonnet over the sponge pad. But usually, its just the micro fibre that comes with the wax.
I use "California Duster" and then Ultimate detailer to give it bit of "pop" and get rid of light road dirt after a run out, before it's covered.