This year's can't-miss Black Friday deals

The beginning of the Holiday shopping season officially kicks off today!

This year, the best single day for deep discounts was slated to be Thanksgiving Day, especially in the electronics category. But Black Friday will also offer many good deals, especially in the toys and clothing categories.

Many deals, even limited inventory doorbusters are available both online and in-store. Almost all of the deals, however, have specific times when they go live. When you are researching a deal, check the times as rigorously as you check the location and price.

Deals on cell phones can be complicated, and often mandate a specific contract or activation, so do your homework before schlepping down to the store to buy a new phone this year.

It is also important to note that some deals, times and prices may change. The roundup below can be used as guidelines and for planning, but always be sure to double-check all the details before making a purchase.

Top research sites for deals You can search for a specific product and see all the discounts available using this site. This site offers historical price comparison, so you can see if it really is the lowest price, or if you should wait for the price to drop more.

Top apps for finding deals

Paribus and Earny get you refunds, automatically, if the price of an item you buy drops after your purchase.

A roundup of some of this year's can't-miss Black Friday deals