I use the same tape measure for everything and I have checked all my metal rules, they all agree within 1mm over a meter, so that's enough accuracy for the sort of thing I do. For things longer than 1m. I just use the tape measure.
Measuring tools I find extremely useful are my digital angle finder, digital depth gauge and digital calipers.
I have been looking for a digital ruler, but so far haven't found one. It would be a hook rule with digital readout. I have difficulty resolving 0.5mm marking on a ruler (old age) that would be a very useful tool to have...for me. If anyone can point me in the right direction +/- a degree......