I never got into the habit of using { and }. I just use H M L (high/medium/low) to get approximately in the right part of the screen, then go line-by-line. You can also do 5H or 10L to get "5 lines from the top" or "10 lines from the bottom". I make pretty good use of vim features, but I like to mix some sloppiness with the precision. I don't often count things before typing commands, because that breaks the second-n…
set relativenumber nonumber
autocmd InsertEnter * :set norelativenumber number
autocmd InsertLeave * :set relativenumber nonumber
IIRC this tip was from the Practical Vim book