Remember: Deadlines, not dreadlines.

So let your latest grand ideas cool off for a while

If you can't fit everything in within the time and budget allotted then don't expand the time and budget. Instead, pull back the scope. There's always time to add stuff later — later is eternal, now is fleeting.

If you still want people in the office every day, change that requirement to every afternoon instead. Then let your troops have their mornings to themselves.

You rarely regret saying no. But you often wind up regretting saying yes.

Ironically, you'll probably get far more done when only half of your workday overlaps with the rest of your team. Instead of spending the entire day dealing with Urgent!!! emails and disruptive phone calls, you'll have the entire start (or end) of the day to yourself.

A business without a path to profit isn't a business, it's a hobby.

Start a business, not a startup.

When good enough gets the job done, go for it. It's way better than wasting resources or, even worse, doing nothing because you can't afford the complex solution. And remember, you can usually turn good enough into great later.

We need to add this feature now. We can't launch without this feature. Everyone wants it. It's only one little thing so it will be easy. You should be able to get it in there fast!" Only thirty-six words, but a hundred assumptions. That's a recipe for disaster.

The solution: Break the big thing into smaller things. The smaller it is, the easier it is to estimate. You're probably still going to get it wrong, but you'll be a lot less wrong than if you estimated a big project. If something takes twice as long as you expected, better to have it be a small project that's a couple weeks over rather than a long one that's a couple months over. Keep breaking your time frames down into

Plans are worthless, but planning is everything.