Write things down. I dont know how many times i have ideas or just a task list of things to do and get so distracted because i dont remember all of the things i may have earlier in the day. Have a small notebook that you just write everything down in. Not a journal but just a task/idea list. From there you have something to expand on or cross off. Crossing an item off a list is always more rewarding than just doing something, at least for me!