5 Things: LAVA Handstand-a-Thon, Crawfish Boil and Clothing and Blood Drives

1. You need Crawfish. And who doesn't? Head to . 234 Underhill Ave. at Lincoln Place, from 2 p.m. until the little critters are gone. $12 for all you can eat.

2. You need to do your part. Luckily today  is holding a . Donate either anytime between 9:45 a.m. and 2 p.m. 17 Eastern Parkway at Grand Army Plaza.

2.5 You need to protect your financial identity. Get those personal papers shredded at the . Plus, the first four people will get free shredders. Prospect Park W & 3rd St., 10 a.m. to 4 p.m. Free. 

3. You need to get the kids out of the house. You already know about  and the  happening today, but for older kids (as well as adults) there's  which raises money for the  dance/acrobatics troupe's many community programs. Handstand for a few seconds or several minutes. Every bit helps. , 524 Bergen St. bet. Carlton and 6th Ave., Free. See our  for more options. 

4. You need to know if your train is running ... There are no planned service changes affecting Prospect Heights stations today, but you should note that all weekend there are no 4 trains south of Brooklyn Bridge and no 5 trains south of Grand Central. No 3 train service will be extended to New Lots Avenue, according to the MTA.  

5. ... And if you have to move your car. Try to grab a Tues/Fri spot today, because alternate side won't be suspended again until Monday, May 28, for Memorial Day, according to the NYCDOT.