Plastic Frosting Bag to Re-grout Floor Tiles

My husband was dreading re-grouting some slate floor tiles where the old grout had broken into pieces. The area was in front of the wood stove so efficiency was needed. I came up with the idea to use a quality thick plastic frosting bag. He was hesitant to try it though afterwards agreed it was fast to apply and less mess to wipe off.

Just cut bottom tip off to the size best suited to the gap in tiles. Fill bag 2/3 full with grout. Fold top of the bag down and squeeze into gaps a few at a time. Wipe with a damp sponge. Have a bucket of water handy. Let dry. Clean any residue off the tiles. Done.