(1) COOKIE ASSORTMENTS ** I sell cookie assortments on eBay, and sometimes send out as many as 10-12 orders per day during the Holidays (each order is 2 dozen, with a minimum of 4 different kinds in each order ~ although I always have at least 6 kinds). I make up 4 or 5 kinds of cookie dough at one time, and keep them in Tupperware containers (with plastic wrap inside) in the refrigerator. So, I can just scoop and bake as many cookies as I need at one time.
I'll also make my own "slice and bake" cookie logs ~ wrap them in waxed paper, then put the logs into freezer baggies. You can put the baggies into the refrigerator, or freeze them for up to 3 months (and no need to thaw them out when you slice & bake either).
Just be sure to write down the name of the cookies, and baking instructions ~ tape it on the container or baggie.
*** And don't be afraid to bake and FREEZE cookies ahead too! Gingersnaps, mandel brot, biscotti, Spritz cookies, Rum balls, cake balls all freeze very well. I line a big sturdy Tupperware or Rubbermaid tub with plastic baggies (from the grocery store) and put the cookies in layers (with waxed paper between the layers), and a plastic baggie on top of it all. They'll actually stay frozen really well for about 3 months! QUICK BREADS and MUFFINS also freeze very well too. ** Note that meringues do NOT freeze well, and will totally crumble.
(2) How to ARRANGE the ORDER of your BAKING: ** I start with the plainest item I need to bake. First is anything with white batter ~ then anything with yellow batter ~ then anything with yellow batter and spices. Next is anything with yellow batter and peanut butter (because a little bit of spice in peanut butter is just fine). The last things I bake are chocolate.
And, the reason for this order? Because I can usually get away with just scraping down the bowl and beaters really well with my rubber scraper, and not having to totally wash everything between recipes! .... Then, I wash everything well before I start the whole arrangement process again with frostings. ** Of course, if you're doing anything that requires separating and beating egg whites stiff, do that FIRST before you do anything else! You can just put them into another bowl and set them aside until you're ready for them.