enjoying life

One of the most enjoyable states of being is "flow"... when a person is doing something he's good at.
Flow feels natural, as time effortless slides by, accompanied by a satisfied feeling of competence.
Flow only happens when a) you're good at something and b) you're doing it

therefore, if you want to enjoy your day, get good at some things you can do every day, and do them every day.

Stuff you should always know about your business

There are the things that any business leader should know about his/her business.  If this information isn't available to you, right off the top of your head, you need to memorize it ASAP:

PNL

Current / Historical

1. ASPs
2. Margins
3. Spending trends

Proforma

1. Forward Looking Financials
2. Impacts of risks/opportunities
1. Top 3 risks
2. Top 3 opportunities

Investment Profile

1. Spending by year
2. Headcount by location by job type
3. BTI and details about why

Business Value

1. NPV
2. Sensitivity / Tornadoes
3. Top 3 risks/opportunities

Customer Forecasts

1. Volume and revenue
2. Probability of win
3. Ranges on estimates