Here are 5 things you should know.
1. If Spirit airlines offer you a voucher as a gesture of goodwill, it can only be used for a very small fraction of the flight price and is almost worthless.

2. Buy a domain name, and set up a catch-all to forward emails to your actual email address.
Domains are pretty cheap these days. You might not get your own name, but you can get something fun instead perhaps.
Congratulations! You can now have a bunch of email addresses! For example:
amazon@example.com ebay@example.com
The bonus to this is that you can set your proper email to filter incoming mail based on the address it was sent to.
3. Some antibiotics may reduce the effects of oral birth control during treatment.
While rifampin like antibiotics is the only ones with studies demonstrating a direct interference, some may have a lesser effect due to indirect interactions.
According to the Walgreen’ s website:
Antibiotics that have been shown to interact with birth control pills include rifampin (Rifadin®), and to a lesser extent, penicillin, amoxicillin, ampicillin, sulfamethoxazole/trimethoprim (Bactrim®), tetracycline, minocycline, metronidazole (Flagyl®) and nitrofurantoin(Macrobid® or Macrodantin®).
The topic of whether these other antibiotics do have an effect is, to this date, somewhat controversial. This study states, “Broad-spectrum antibiotics can lead to lower levels of circulating oral contraceptive hormone levels and have, thus, been implicated in causing failures in women taking oral contraceptives.” However, it concludes: “Rifampin is the only antibiotic to date that has been reported to reduce plasma estrogen concentrations. Oral contraceptives cannot be relied upon for birth control while taking rifampin.”
So while it is quite possible rifampin is the only antibiotic with such effects, it does not hurt to be aware of this potential side effect and opt to use secondary BC methods during antibiotic use for good measure.
4. How to opt out of Netflix test ads.
Accounts, test participation, OFF!
Or follow this link. https://www.netflix.com/Login?nextpage=https%3A%2F%2Fwww.netflix.com%2FDoNotTest
5. When searching for discount codes on the web, use a different browser or private browsing. Discount codes websites force you to click on affiliate links before revealing the code, earning them a commission from your purchase whether the code was legit or not.
Using a different browser will isolate the affiliate tracking cookie on that browser. Private browsing does not save any tracking cookies so that works too.
If you’re on Firefox then just use a different container tab from the one you plan on making your purchase on.