Sometimes you just want a straight line and these rulers are the best rulers for bullet journaling.
How To Build Your Bullet Journal Toolkit
My Favorite Collaging + Bullet Journaling Supplies — rachel a. dawson
Combining-TimeSeries-TextData/barclays_events.tsv at master · fmpr/Combining-TimeSeries-TextData · GitHub
Bullet Journaling Terms Every Beginner Should Know
The Best Bullet Journal Supplies for Beginners: 2019
How To Build Your Bullet Journal Toolkit
It's a straight edge, a ruler, a column and row guide, a bookmark, and likely to be one of the most useful planner accessories you own. It is made of
B5 Bullet Journal Ruler
MoxieRule Bullet Journal Planner Ruler by MoxieDori
7 Bullet Journal Tools for Beautiful Bujos - Planning Mindfully