I've started a bit of eBay retailing as I'm now semi-retired having run my own company (non retail) for 18 years. This has me selling around 30 items a week for 15 established SKU's and I'm adding new lines as I go. Sticking with them if they sell, dropping them if they don't. I'm probably going to max things out at 100 sales a week to stay under the VAT threshold. I've reached the stage after 3 months of driving the margin forward and want to tie down good source points for packaging, boxes and materials. I need to tie down a good supply source for low cost large letter and small parcel boxes and bubble wrap and package tape and A6 document wallets. At the moment I'm making do with Amazon and eBay sellers but would prefer to go direct to a supplier(s) or wholesaler(s). So, can anyone recommend their go to supplier for single skin card boxes. The lightest item I ship is 35g and the heaviest item is 2kg so the boxes don't need to be substantial. I currently buy in units of 100 boxes but see that could ramp up to order of up to 500 units as the sales progress. Thanks in advance.