In case anyone is wondering why the recommendation is made in the first place, the idea is to allow the paint to breathe. Depending on how it was cured (totally air dried or heated booth, say around 140* for 1/2 hr, or anywhere in between) the paint will continue to off gas for some period of time. The concern by paint manufacturers and appliers is that waxing could trap some of the solvent gas and dull the finish from within. You may hear the term "die back" for this condition. The variation in time recommended is usually based on ambient temps (the warmer it is the faster the gases are driven off), and the painters tolerence for risk. If the paint's been baked off in a heated booth or with an infrared lamp system, this caution may not be necessary with modern, low VOC paints.

I agree with the glaze/detailer suggestions, though as noted, they don't last long. For the non-painters, if you've ever had a paint job, or detail job done, and a couple to few weeks later buffer swirl shows up it's because the glaze has "worn off". Poor detailers use it to hide crappy buffer work.