It is a really good idea to write down all the things to do before take off on a written checklist and keep it with you and use it before each flight.

Also learn a memory prompt [ACRONYM] to use immediatly before take off. In the UK we use S.M.A.R.T.

Switch on
Meter in the green
Aerial extended
Rates set to take off
Trims in correct places

I have seen crashes caused by failures in each of the above.

ALSO don't do as the old farts like me seem to do which is drag it out of the vehicle. kick the tyres light the fires and take off some do fail to do the checks others do them but you do not see it as they just scan the box. BUT I have seen a senior examiner crash because he did not extend the aerial duh.