If you are in the beginning of your entrepreneurship journey, or if you have been in this road for a while, take this advice: Never say Duh!
I do agree you may be very knowledgeable, you and your idea are probably unique and so does your startup path; but I have found out many challenges and problems most startups face, are the same! and the greater point is, our brain seem to be handle those unique problems better and sometimes acts stupid against those SIMILAR problems, many other face... yes! I mean the DUH ones!

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Those obvious advises!
I'm not telling you go grab a pen and write down whatever everybody says! let's check some advises which most frequently are replied by that awful sound, DUH!
- Do you believe in a lover and a mistress? well, startups are not good with that! Startup should be considered a fulltime affair! no side businesses. But you may have figured some PASSIVE income strategies for your financial issues. if you are interested, you can read my previous posts on investment mindset and invest in these three
- don't be terrified about your idea being stolen! yes! stop that OCD! I'm not saying let's disclose all the details, but talking about your idea and product will make it mature and perfect! story telling is an artistic characteristic of great innovators and founders.
- if someone is not doing right, fire him/her! quickly! startup ecosystem won't let you drive with brakes on
fire him! - release the first versions as fast as possible. don't leave the good for the perfect.
again, don't leave the good for the perfect.
don't leave the good for the perfect.
don't leave the good for the perfect.
repeat, don't leave the good for the perfect!
I can't hear you! don't leave the good for the perfect. - Solution don't always come out with new technologies.
sure some very successful startups was born because new technologies were adopted by many; but not necessarily. Uber succeeded because location based services became very popular and improved, but Airbnb just succeeded on same platform which was existed for years.
YES! these are some advises you hear frequently and ignore! giving that DUH! think again!