What’s one mistake you made early on in business that you wish someone would’ve warned you about?

[kacey_k]

Mine—Being too giving in an effort to make others happy, instead of protecting my own time, energy, and profit.

[Minion]

Ooof, just one? HA!

Probably the biggest one, was quitting my regular job too early.  I had barely anything in my checking and savings and pretty much said yeah this will take off...... It was Ok at first, but then the "excitement" died down and I really had to put in those long hours day and night to make ends meet. 

I know exactly where you are coming from with your big one.  Reminds me of the instructions from airplanes if the plane goes down make sure you put on your oxygen mask first.  It can be related to everyday instances. 

[CurlyDoodle]

Taking all comers!

I have had my current business 2.5 years and still made this mistake recently. The clients who come at the last minute, make unrealistic demands, then complain. You can't please everyone, but you can filter out clients most likely to be problematic.