I used to have the same problem I would buy fancy moleskins or really nice Japanese grid notebooks, and I always felt like I had to model what I was trying to get out of my head to the medium rather than just focusing on getting it out of my head.

Not too long ago I accidentally bought a huge package of wide ruled spiral notebooks. I hate wide ruled and prefer college ruled. So they sat collecting dust for a long time before I finally looked at the pile and figured I'm just gonna start using these and treating them exactly like you do - a drainage ditch. So far so good, the pile is half gone. Definitely helps to go with the no fucks given approach.