Just a list of Do's and Don'ts concerning commissions, especially those that are being mailed out

Do check spelling of your commissioner's name. Especially if it's a long one
Do keep track of what you've finished vs. what needs finishing in one big list, so nothing gets lost
Do keep information like mailing addresses where you'll know where to find it again
Do make a commission a priority if you realize that it's been three months since you've said you're going to send it out

Don't go buying a bunch of stuff, or putting aside money for things to buy in the future, if you need to buy postage
Don't correct spelling by gluing on a bit of paper with the correct spelling on it over the misspelled word or name, especially if you can still see bits of the old spelling along the edges
Don't keep saying you're almost done, or it'll get sent out next week if it isn't going to happen
Don't keep going on mini vacations to your S/O's house and forgetting your work at home, and then forgetting it when you get back too

Anyone else have any?