Hi, has anyone had to buy a helium tank or can recommend a cheap places to have approx. 20 balloons inflated??
Asda do small helium tanks for about £20, fill about 15/20 balloons depending on the size you want x
You can buy helium cannisters online they will fill approximately 30. Also places like the Card Factory do but I'm not sure if you have to buy their balloons x
Where is your location? Wouldn't recommend DIY, it's definitely worth paying a little bit more to have them done.