I'm going to explain OLTP, data warehousing, and OLAP. Kiss that ghetto post-doc goodbye and watch big companies line up to pay you $300/hour to romance their most critical data.
Lets face it, unless you have a photographic memory, no developer can remember all the different functions, options, tags, etc. that exist. Documentation can be cumbersome at times, thats why I like cheat sheets
Organised into 3 distinct colour groups - neutrals, muted tones and bold colours, you may recognize a few of the shades from some of your favourite Web2.0 sites.