As a non-native speaker and before the advent of the panaceas called *spell-checkers* and *auto-correct*, I used to often misspell words like **receive** ( as "**recieve**") and **achieve** (as "**acheive**").
 
I still make the mistake sometimes and thanks to auto-correct/in-built spell checkers in browsers, I am never able to get a hang of which spelling  to use when!

Is there any easy way to remember when to put 'i' before 'e'(as in "believe", "relief" etc. ) and when to put 'i' after 'e'.(receive, receipt, deceit) and so on?

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A ***note*** to downvoter(s) - This is a genuine question from a non-native English speaker. Put yourself in my shoes and think about it for a moment before downvoting. You might say this as a General Reference question but I just got to know about the **'i' before 'e', Except after 'c'** mnemonic/rule *after* reading @John Clifford's answer below. I searched with Google and within EL&U many times before asking this question. And I also see that a close vote has been cast with the reason "primarily opinion based". I have not an iota of clue why you'd choose that...