One thing I do is intentionally procrastinate (postpone a task to a time that doesn't feel like the present) but also make an "appointment" to get it done. E.g., decide that I'll wash the dishes at 2pm which is a few hours from now, and set a phone alarm or similar to go off at that time. I actually find myself anticipating the alarm once 2pm is getting near, so when it finally sounds, I've been waiting for it and I'm ready to immediately silence the alarm and start the task. I kind of got the idea from here, and it helps:
https://terrytao.wordpress.com/2008/08/07/on-time-management