My quick tip this week is...CHANGE YOUR ROTARY BLADES!!
I know that I (like many quilters) wait far too long to change my blades.
It's just not something that is convenient to do while in the middle of a project.
So if you don't have time to sew, change your blades and you will be so glad you did!
I have heard it suggested that you can sharpen blades by cutting through several layers of tin foil a few times. I don't know if this works. I also know that there are sharpeners on the market, but I don't have one. See the rotary case labeled USED in the photo? I put my old blades in it and save them. Someone in my guild collects them a couple times a year for some charity (for veterans, I believe?) I can easily bring them to the meeting, or throw them out, once they are safely tucked back into a case.
NEVER throw them away without putting them in a container! They are still very sharp and can cut through the trash bags, and be hazardous to you or whomever else handles the trash.
Be careful, be safe, and stay sharp!