Take a look at all our userscripts that many lovely people have contributed to.
Choosing the right scripts can make a huge difference in your user experience.
Others have already mentioned the “ignore” script. That one is good for those “d’oh!” moments. I’d also suggest looking at the reorder script. You can set it to always ask for reading or meaning first. Then you never even have to glance at which one it’s asking for. 
I hope that helps.