As you can see from Jeff's, Franks', the Dr's, and my posts... everyone has found a slightly different technique that works for them. That's why I suggest practicing first on scrap until you find what works for you and the particular paint brand you buy.
As a minor point I'll offer the advice given to me by a proper chef. When you try a recipe for the first time, don't substitute anything or change the procedure. Use exactly and do exactly what the recipe calls for. After that first attempt, experiment with the recipe to make it your own. The same applies to wrinkle finish paint. Start with the instructions on the can, follow them exactly, then on subsequent attempts branch out to see what works for you.