"May the most holy, most sacred, most adorable, most incomprehensible and unutterable Name of God be always praised, blessed, loved, adored and glorified, in Heaven, on earth, and under the earth, by all the creatures of God, and by the Sacred Heart of Our Lord Jesus Christ in the Most Holy Sacrament of the Altar. Amen."
If you are looking for something to do this Lent that will be simple enough to persevere in for forty days, but still be truly meaningful to add to your spiritual life, then consider praying the Golden Arrow prayer. It's something you could tape to your fridge or mirror or desk that you would glance toward throughout the day to remind you to pray this often.
Our Lord told Sister Mary of St Peter that blasphemy injured Him more grievously than all other sins and was as a poisoned arrow continually wounding His Divine Heart. He gave her the Golden Arrow which could touch Him delightfully so as to heal those other wounds inflicted by the malice of sinners and grant graces to those who recited it.
Lent is about drawing closer to the Lord, and what better way to do that than by honoring His Holy Name? Blasphemy and using God's Name in vain are common sins of our time that need reparation, so this would be a great way to prepare our hearts for the Lord at Easter.
I am not the best at adding multiple penances and resolutions for Lent because more often than not I start strong and end . . . well wanting. So if you're like me and need something you can manage to keep going through a crazy busy ordinary life, this might be the prayer for you as a fruitful Lent idea!