Everyone needs a function or an equation that they can call their own. Some of these came about from challenges given by teachers and such. Others are a natural cosequence of having that free time normally available in abundance to compulsive slackers such as myself (time that normally would be spent doing homework or otherwise making some sort of positive contribution to the world) . Some are stupid and some have probably been thought of before, but here for the sake of posterity are various things worked out by myself (except where noted) over the years.