Thank you, LouiaB.
Yes, I always thought that reality checks should be performed in a way so that you only use them when you actually want to prove to yourself that you are awake, not just out of habit where you go "I guess I'll do another reality check".
I have had a couple annoying dryspells these last months, where I may have one or two lucid dreams packed together but then suddenly nothing at all for several weeks, so this sometimes discourages me, like right now for example.
But then again, I have got spontaneous lucid dreams during periods like this before, so it's only a matter of time until I have another one.