Lent is obviously a popular time for going to Confession. What with all the penitential acts going on, NOT going would be odd. Most parishes have penance services where the sacrament is offered at a time when it usually isn’t, to enable and encourage people to go.
There are two great examination of consciences you can use. The first one is from the Vatican’s website; it is a link to the Ten Commandments. I suggest that you read over them all and assess how you stack up. If you have your own copy, they begin at paragraph 2052.
This is a direct link to a downloadable PDF file which contains a nice examination of conscience: Downloadable Confession Guide (PDF)
There is another great opportunity for confession right after Easter; Divine Mercy Sunday is the Second Sunday of Easter. (See the link in the previous sentence for information on celebrating it.) There is a plenary indulgence attached to going to Confession and celebrating the Divine Mercy devotions on that day. See also: Divine Mercy Sunday.
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