The World Health Organization has Five Moments for washing hands: 1  before patient care. 2  after environmental contact. 3  after exposure to blood/body fluids. 4  before an aseptic task, and. 5  after patient care.
This means that you can use leftover sunscreen from one year to the next. Some sunscreens include an expiration date â a date indicating when they're no longer effective. Discard sunscreen that is past its expiration date. If you buy sunscreen that doesn't have an expiration date, write the date of purchase on the bottle and be sure to throw it out within three years. Also, discard sunscreen that has any obvious changes in color or consistency.
Each frequent flyer program has slightly different rules for when their miles expire. For some international airlines, itâs a hard 3-year expiration. For most programs in the US, accounts expire after 18 months of dormancy. This means that if you let your account sit for 18 months, and neither earn nor redeem a mile, youâll lose them. And this seems to take people by surprise pretty frequently.