Some small lists are very well maintained in Notes section.
You just have to start its name with, say, Underscore (”_”) and it will be shown at the top of the list.

Examples are: one-time shopping list for Tesco, data about fuel purchases on petrol stations, defects list to sort at the car dealership.

The splendor of these is – when you don’t need them anymore, you just flush them from your PDA, and that synchronises everywhere (hopefully).

Using ListPro for very easy lists is definitely an overkill.
For short-lived, short notes keep with Notes.
For big and/or longer-lived reference lists like: International Telephone Codes to Country and vice versa conversion list; UK Postcodes; Personal DVD catalog…—ListPro is a good choice because you can search it.