I use a spray wax from Lucas that works fantastic very easy to use.
Obviously non liquid waxes are usually a bit better but I use this once every few weeks and it keeps a great shine, beads water, and helps keep the evil bird $*%& off.
Keep in mind you always want to wax in a shaded area especially with non liquid wax. The sun cakes the wax into your clearcoat and can damage it when wiping off.
2011 3.7L V6 Premium
Roush Axle-Backs | SCT Bama Tune | SR Springs
As Jeremy Clarkson would say: POWEEERRRRR