Safe and secure
Buttons loose? Dab a little clear nail polish on the threads underneath or on top of the button to fasten them together and stop the button coming off.
TRY THIS OLD CAFE TRICK TO GET YOUR CHALKBOARD LOOKING AS CLEAN AS IT DID WHEN IT WAS FIRST PAINTED: WIPE IT OVER WITH A CLOTH SOAKED IN A COLA SOFT DRINK. ALL RESIDUE OF CHALK DUST WILL BE QUICKLY REMOVED.