Just a few things taken care of 4 - 6 Weeks Prior to departure will reduce the stress when there are many things to do.
Then relax with a glass of wine and read your travel books....again.
Copy of Medical Prescription(s) ~ If you have tons of medication or take substances that could be used as recreational drugs get a copy of your prescription(s) to show suspicious authorities.
I've even heard of anti-seizure meds resulting in a prison stay in Mexico. Better to be safe than sorry. Copy your prescription before you have it filled next time or phone your doctor and ask for a copy for travel purposes. Keep it in your envelope.
Mail Order or Internet Purchases ~ Most times you get your purchases within a week or two but sometimes you need to make changes so give yourself some time and order early.
Hair and Glamour Appointments ~
Book early to get in with those busy stylists and aestheticians. Make appointments for two or three days before you leave or find valuable tips for doing your own do here
Prescription Sunglasses & Dive Masks ~ 4 - 6 Weeks Before you leave is an ideal time to order contact lenses, glasses, prescription sunglasses and prescription dive masks for those beach and sailing vacations.