Think your job has its ups and downs… How’d you like to be a lipstick tester? (You should see the rest of him!) For me it is off to Birmingham tomorrow, where no lipstick testing is on the agenda, but I am sure that one of the topics at the MBA of Alabama Conference will be how best to lend in an era of constrained supply of houses to buy. But that may be changing: Florida is seeing its inventory of homes for sale skyrocket and price growth stagnate, largely due to homebuilders rushing to accommodate a flood of newcomers. Because we’ve done such a great job keeping building costs on land down, while at the same time not polluting our oceans, let’s build a floating city for 20,000. (Sarcasm font required.) Whether it is real estate, beer cans, or the value of companies, values are determined by supply and demand, so here’s something interesting: Berkshire Hathaway’s cash pile has hit a record as Warren Buffett cut its stake in Apple, a company t