“I"m giving up Christianity/religion/Lent/Jesus/Catholicism/etc”
Now that’s that out of the way…
Every year I try to give up fast food. I love fast food and every year I get a little better at not missing it. This year, however, we have a newborn in the house and that’s just not feasible. Same with giving up all coffee. So, this year I’m giving up lattes (I really like them), wasting less time on Facebook, and the wife and I are going to start reading the Liturgy of the Hours.
Speeding. I like to drive fast.
I’m also giving up meat and am going on a serious diet. I have a lot of weight to lose. My initial goal is to lose 15lbs by Easter Sunday.
GO ME!
Alcohol.
I am giving up Lent for Lent.
All unnecessary spending on stuff. Before I buy anything I’m going to ask myself if I really need it, or can it at least wait until after Easter. Plus the rosary nightly. I used to do it every night, but I fell out of the habit.
StG
Read the first sentence of the OP, threadshitter.
StG
I haven’t been to mass since I was a teenager, but have sorta decided to observe Lent by giving up, or attempting to at least, all animal products in my diet. For health reasons I’ve been kicking the idea around for a while, and Lent seems like a good time to start. Fasting is good for the soul, and besides, most supermarkets have grains and veggies on sale starting today.
So for Lent, I’m going vegan. 12 hours into it and I’m already questioning my sanity.
My church doesn’t observe Lent. 
Each year for me it’s the same. I give up meat. It’s not required to give up something, or to do something extra, but I look on it as a spiritual exercise, a preparation for Easter. Each time I feel sorry for myself that I can’t have that burger(I’m a real carnivore at heart) it reminds me that someone gave up Their life for me.
I don’t give up anything. Being that I’m of the age where the only thing I have to observe is abstinence, that’s all I do. Lazy of me, I know, but I’ve tried to give up things and failed, so I quit trying.
I will try to be a better person, though.
I’m Protestant (a member of the very very liberal United church of Canada) and while we don’t really “do Lent”, I do try to take the time to do more reading and reflection on my own spirituality during Lenten season. But my husband was raised French Canadian Catholic and grew up with Lenten observation. My son was fascinated by the whole “giving up for Lent” and decided that we should give up soda (we call it “pop” because we are Canadian) and at first he thought that we should give the pop away to the homeless, (“give cans of Pepsi to the shopping cart men”) but decided that the money we SAVE on should be donated to the food bank. He has even started a bar graph showing how much each of us is saving.
I started a few years ago to include generosity into my Lenten practice so this fits nicely. I am also cutting back (not quitting) social media and “time wasters” on the internet and using this time for reading books I claim “I don’t get a chance to read serious stuff”. No, I am not putting a big banner up about “quitting Facebook for Lent” because there are several things I am involved with that use Facebook as the communication/planning tool, but I am trying to reduce it. I can ask myself “Do I need to look at all these photos/memes or could I be reading something thought provoking?”
I’ve given up Facebook, and am trying to not replace it with blogging or message boards. I’m at home with four small children and Facebook is like having a conversation in the other room that I want to pay attention to- always tugging at my mind. So it’s a way to try to focus more on being present for my kids.
I am also going to go to Mass every Sunday with a selection of those children. For the last year we’ve lapsed for a wide variety of reasons (mostly centered around lack of transport and the twins) but my husband and I will be splitting up childcare so one of us and some of the kids can go every week. This will be thoroughly penitential. I can either take the five year old and the one year old twins, or the five year old and the Amazing Disappearing Three-Year-Old. Either will be full of stress but we will be there.
God willing.
I’m giving up Oreo cookies, which have recently become a nightly treat for me. And every year I schedule myself to volunteer with Habitat For Humanity a couple weekends during the Lenten season, so I need to get on that.
Another Protestant who doesn’t officially do Lent, but I like to observe it in my own fashion. I was made aware of the Lenten Loophole which states Sundays don’t count in Lent so whatever you give up for Lent, you can do on Sundays. This year I am giving up television (except for Jeopardy! and the news) and candy. Last year I got a pamphlet of Lenten devotions which has a prayer and a Scripture reading for every day of Lent. I read it faithfully last year and am doing it again this year.
Lunch
Wow, to be honest 4 kids, one of them a toddler is a really awesome job on Sunday mornings. I kind of backslid on the whole church attendance thing for a while when my son was really young because getting my HAIR and a small child ready was enough of a problem in the mornings.
Go YOU!
It’s too late this year, but next year, I might aspire to giving up telling the same joke every year.
We actually have one preschooler and two almost-toddlers. They’ll be walking in the next couple of weeks. Heaven help us. And thanks for making me feel even more heroic. 
I am adding Morning Prayer (Episcopal here) to my morning routine and praying Prayer Beads (Episcopal for Rosary) every night. The past few years I have focused on adding some daily prayer and meditations rather than “giving up” stuff. I’ve found that to be a great way to add a little discipline to my life and to center myself more.