I personally use 1Password every day. I use it to store all of my passwords, my credit cards and banking information, serial numbers for software that I purchase, and other secure information. My favorite thing about this app is that it integrates with your browser (Firefox, Chrome or Safari), so that you can autofill your usernames and passwords to any website you have saved, and you can even autofill your credit card info! Its so handy to have all of my information all in one place, either on my laptop or my phone. Plus, now I don't have to remember all of my different passwords. I just need to remember one master password, and thats it! I highly recommend this app - it will save you so much headache from having to remember what username and password you used on the site you're visiting.