Depends on exactly what your doing. Just basic French crepes, with or without filling?
My only "tips" are, just make sure you let the batter sit at room temp for at least an hour, two at most. That will let the bubbles subside and help keep them from tearing while you're cooking them.
Variations are endless. I like a savory (umami) thanks China) style filling. Like duck with cukes, scallions and cilantro, with sun-dried tomatoes added to the batter. Then a nice sauce like hazelnut, frangelico and butter .
Sweet fillings are obviously the more popular.
You can add just about any spice, herb or even liqueur to the batter.
I highly recommend creme fraiche if you're making them plain or a sweet filling. It's not easy to find and expensive, but simple to make and so good.
I say I don't like making them, that's not true, I hate the idea of making them. Once I start, I get into it. Just so many options.
Glad you asked, I enjoyed thinking about it.
Oh...
2cup or close to it, of whipping cream. I use heavy cream.
4 tbls. of buttermilk.
Mix them together and put it in a Glass container. Let it stand at room temperature (about 70) until it gets very thick. It usually takes around 24 hours, but it could take longer. Average for me is about 24. When it gets thick, stir it good, cover it an stick it in the fridge. It will stay good for a week. It's freakin awesome on anything you would use whipped cream on, especially chocolate and fruit. You can also use it for in soup bases and sauces. It won't curdle and adds an extra "umph" that you don't get from using basic cream or milk.
Bam!!!!