Consider your data source options carefully
One of the great things about Power Apps is that we can use a multitude of different data sources, but we have to be constantly aware of the advantages and disadvantages of each. Personally, I have a method of escalation for my various data sources that helps me to find the right tool for the job.
Excel
Excel is where I tend to start a lot of my developments, although realistically I never consider this as a data source for anything in production. The risk of the file accidentally being deleted, the lack of control over each row, plus issues with a lack of simple data validation carry far too much of a risk for me.
Where Excel does really play a part in my development, though, is for quick and easy modeling of my data structures. Using Excel, I plan out my various tables of data, along with any columns of data that could be included within the table. I don’t worry about relationships at this point, but having my data...