Hello

[dave r]

Hi Conchfan and welcome.
There are many ways to collect seashells from home. You can buy them online from the various dealers listed on this site, or from ebay or conchnet auction sites.
There are various shell clubs and societies dotted around the world who have members willing to sell or exchange shells. Personally I find Facebook a very good place to meet other collectors who are very willing to exchange (and even sometimes give away) shells.
I hope this is useful,
Dave