- One is expiration date
- Two how great your need is for the particular item.
If you are in need of a particular item and there isn't a great sale or no sale at all, then yes, I would suggest using it, it's better to save a little then nothing at all. BUT if you have multiple coupons, I would only use one of them and hang on to the other one to try and use along with a great sale.
1. Be Patient - wait for a great sale before running out to use the coupon
2. Use a coupon without sales only if expiring &/or if you are in need of the item.
3. Don't feel obligated to use a coupon just to use it.